From e595a99c7e463a50965e4193a98693c107c31b79 Mon Sep 17 00:00:00 2001
From: Anubhav Jain <anubhavster@gmail.com>
Date: Fri, 12 Oct 2018 10:49:58 -0700
Subject: [PATCH] Update to v0.4.3

---
 docs/_sources/changelog.rst.txt               |  10 +
 docs/_sources/contributors.rst.txt            |   1 +
 docs/_sources/featurizer_summary.rst.txt      |   2 +-
 docs/_sources/matminer.datasets.rst.txt       |  16 +-
 docs/_sources/matminer.datasets.tests.rst.txt |  46 ++++
 docs/_static/documentation_options.js         |   2 +-
 docs/changelog.html                           |  16 +-
 docs/contributors.html                        |   7 +-
 docs/example_bulkmod.html                     |   6 +-
 docs/featurizer_summary.html                  |   8 +-
 docs/genindex.html                            | 103 +++++++--
 docs/index.html                               |   6 +-
 docs/installation.html                        |   6 +-
 docs/matminer.data_retrieval.html             |   6 +-
 docs/matminer.datasets.html                   | 113 +++++-----
 docs/matminer.datasets.test_datasets.html     |  44 +---
 docs/matminer.datasets.tests.html             | 213 ++++++++++++++++++
 docs/matminer.descriptors.html                |   6 +-
 docs/matminer.distance_metrics.html           |   6 +-
 docs/matminer.featurizers.data_files.html     |   6 +-
 docs/matminer.featurizers.html                |  96 ++++++--
 docs/matminer.featurizers.utils.html          |   6 +-
 docs/matminer.figrecipes.html                 |   6 +-
 ...tminer.figrecipes.matplotlib.examples.html |   6 +-
 docs/matminer.figrecipes.matplotlib.html      |   6 +-
 docs/matminer.figrecipes.plotly.html          |   6 +-
 docs/matminer.html                            |  20 +-
 docs/matminer.learners.html                   |   6 +-
 docs/matminer.learners.tests.html             |   6 +-
 docs/matminer.models.html                     |   6 +-
 docs/matminer.utils.data_files.html           |   6 +-
 docs/matminer.utils.html                      |  27 ++-
 docs/matminer.utils.tests.html                |  11 +-
 docs/modules.html                             |   9 +-
 docs/objects.inv                              | Bin 4940 -> 5143 bytes
 docs/py-modindex.html                         |  32 ++-
 docs/search.html                              |   6 +-
 docs/searchindex.js                           |   2 +-
 docs_rst/changelog.rst                        |  10 +
 docs_rst/contributors.rst                     |   1 +
 docs_rst/featurizer_summary.rst               |   2 +-
 docs_rst/matminer.datasets.rst                |  16 +-
 matminer/__init__.py                          |   2 +-
 setup.py                                      |   2 +-
 44 files changed, 672 insertions(+), 241 deletions(-)
 create mode 100644 docs/_sources/matminer.datasets.tests.rst.txt
 create mode 100644 docs/matminer.datasets.tests.html

diff --git a/docs/_sources/changelog.rst.txt b/docs/_sources/changelog.rst.txt
index 6de65d0d4..a62fc1c6e 100644
--- a/docs/_sources/changelog.rst.txt
+++ b/docs/_sources/changelog.rst.txt
@@ -5,6 +5,16 @@
 matminer Changelog
 ==================
 
+**v0.4.3**
+
+* Revamped test / example data loader classes (D. Dopp, A. Ganose, A. Dunn)
+* Add chunksize support to improve performance of dataframe featurization (A. Ganose)
+* Improve performance of BandCenter with large coefficients (A. Faghaninia)
+* Revamp of MultiFeaturizer (A. Ganose)
+* Custom progress bar for running in notebook (A. Ganose)
+* Improved multi-index for conversion featurizerse (A. Ganose)
+* Minor fixes / improvements (D. Dopp, A. Ganose, A. Faghaninia)
+
 **v0.4.2**
 
 * Refactor conversion utils to be featurizers for consistency and parallelism (A. Ganose)
diff --git a/docs/_sources/contributors.rst.txt b/docs/_sources/contributors.rst.txt
index d4d0dd706..e20ada628 100644
--- a/docs/_sources/contributors.rst.txt
+++ b/docs/_sources/contributors.rst.txt
@@ -23,6 +23,7 @@ Matminer is led by `Anubhav Jain <http://www.anubhavjain.net/>`_ and the Hacking
 * Jason Frost
 * Julien Brenneck
 * Alex Ganose
+* Daniel Dopp
 
 University of Chicago
 ----------------------
diff --git a/docs/_sources/featurizer_summary.rst.txt b/docs/_sources/featurizer_summary.rst.txt
index 58fa2fe7d..a8e857907 100644
--- a/docs/_sources/featurizer_summary.rst.txt
+++ b/docs/_sources/featurizer_summary.rst.txt
@@ -34,7 +34,7 @@ Parent classes and meta-featurizers.
 ==========================   ================================================================================================================================================================================================================================================================================================================================================================================================================
 Name                         Description
 ==========================   ================================================================================================================================================================================================================================================================================================================================================================================================================
-:code:`MultipleFeaturizer`   Class that runs multiple featurizers on the same data `[more] <https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.MultipleFeaturizer>`_
+:code:`MultipleFeaturizer`    `[more] <https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.MultipleFeaturizer>`_
 :code:`StackedFeaturizer`     `[more] <https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.StackedFeaturizer>`_
 :code:`BaseFeaturizer`       Abstract class to calculate features from raw materials input data `[more] <https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.BaseFeaturizer>`_
 ==========================   ================================================================================================================================================================================================================================================================================================================================================================================================================
diff --git a/docs/_sources/matminer.datasets.rst.txt b/docs/_sources/matminer.datasets.rst.txt
index 58f351884..f70605bc9 100644
--- a/docs/_sources/matminer.datasets.rst.txt
+++ b/docs/_sources/matminer.datasets.rst.txt
@@ -6,15 +6,23 @@ Subpackages
 
 .. toctree::
 
-    matminer.datasets.test_datasets
+    matminer.datasets.tests
 
 Submodules
 ----------
 
-matminer.datasets.dataframe\_loader module
-------------------------------------------
+matminer.datasets.dataset\_retrieval module
+-------------------------------------------
 
-.. automodule:: matminer.datasets.dataframe_loader
+.. automodule:: matminer.datasets.dataset_retrieval
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+matminer.datasets.utils module
+------------------------------
+
+.. automodule:: matminer.datasets.utils
     :members:
     :undoc-members:
     :show-inheritance:
diff --git a/docs/_sources/matminer.datasets.tests.rst.txt b/docs/_sources/matminer.datasets.tests.rst.txt
new file mode 100644
index 000000000..6bc35ea04
--- /dev/null
+++ b/docs/_sources/matminer.datasets.tests.rst.txt
@@ -0,0 +1,46 @@
+matminer.datasets.tests package
+===============================
+
+Submodules
+----------
+
+matminer.datasets.tests.base module
+-----------------------------------
+
+.. automodule:: matminer.datasets.tests.base
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+matminer.datasets.tests.test\_dataset\_retrieval module
+-------------------------------------------------------
+
+.. automodule:: matminer.datasets.tests.test_dataset_retrieval
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+matminer.datasets.tests.test\_datasets module
+---------------------------------------------
+
+.. automodule:: matminer.datasets.tests.test_datasets
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+matminer.datasets.tests.test\_utils module
+------------------------------------------
+
+.. automodule:: matminer.datasets.tests.test_utils
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+Module contents
+---------------
+
+.. automodule:: matminer.datasets.tests
+    :members:
+    :undoc-members:
+    :show-inheritance:
diff --git a/docs/_static/documentation_options.js b/docs/_static/documentation_options.js
index c9ec524df..08ff1628e 100644
--- a/docs/_static/documentation_options.js
+++ b/docs/_static/documentation_options.js
@@ -1,6 +1,6 @@
 var DOCUMENTATION_OPTIONS = {
     URL_ROOT: '',
-    VERSION: '0.4.2',
+    VERSION: '0.4.3',
     LANGUAGE: 'None',
     COLLAPSE_INDEX: false,
     FILE_SUFFIX: '.html',
diff --git a/docs/changelog.html b/docs/changelog.html
index 6c267c67b..123ada1c0 100644
--- a/docs/changelog.html
+++ b/docs/changelog.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>MatMiner Changlog &#8212; matminer 0.4.2 documentation</title>
+    <title>MatMiner Changlog &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -39,6 +39,16 @@ <h3>Navigation</h3>
             
   <div class="section" id="matminer-changelog">
 <h1>matminer Changelog<a class="headerlink" href="#matminer-changelog" title="Permalink to this headline">¶</a></h1>
+<p><strong>v0.4.3</strong></p>
+<ul class="simple">
+<li>Revamped test / example data loader classes (D. Dopp, A. Ganose, A. Dunn)</li>
+<li>Add chunksize support to improve performance of dataframe featurization (A. Ganose)</li>
+<li>Improve performance of BandCenter with large coefficients (A. Faghaninia)</li>
+<li>Revamp of MultiFeaturizer (A. Ganose)</li>
+<li>Custom progress bar for running in notebook (A. Ganose)</li>
+<li>Improved multi-index for conversion featurizerse (A. Ganose)</li>
+<li>Minor fixes / improvements (D. Dopp, A. Ganose, A. Faghaninia)</li>
+</ul>
 <p><strong>v0.4.2</strong></p>
 <ul class="simple">
 <li>Refactor conversion utils to be featurizers for consistency and parallelism (A. Ganose)</li>
@@ -356,7 +366,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/contributors.html b/docs/contributors.html
index 1ccc6e2a2..45e27ce85 100644
--- a/docs/contributors.html
+++ b/docs/contributors.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>MatMiner Contributors &#8212; matminer 0.4.2 documentation</title>
+    <title>MatMiner Contributors &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -53,6 +53,7 @@ <h2><a class="reference external" href="https://hackingmaterials.lbl.gov/">LBNL
 <li>Jason Frost</li>
 <li>Julien Brenneck</li>
 <li>Alex Ganose</li>
+<li>Daniel Dopp</li>
 </ul>
 </div>
 <div class="section" id="university-of-chicago">
@@ -136,7 +137,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/example_bulkmod.html b/docs/example_bulkmod.html
index 61ce733a5..4c7d885af 100644
--- a/docs/example_bulkmod.html
+++ b/docs/example_bulkmod.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>Predicting bulk moduli with matminer &#8212; matminer 0.4.2 documentation</title>
+    <title>Predicting bulk moduli with matminer &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -361,7 +361,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/featurizer_summary.html b/docs/featurizer_summary.html
index c52ffb518..98351cabe 100644
--- a/docs/featurizer_summary.html
+++ b/docs/featurizer_summary.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>Table of Featurizers &#8212; matminer 0.4.2 documentation</title>
+    <title>Table of Featurizers &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -83,7 +83,7 @@ <h3>Parent classes and meta-featurizers.<a class="headerlink" href="#parent-clas
 </thead>
 <tbody valign="top">
 <tr class="row-even"><td><code class="code docutils literal notranslate"><span class="pre">MultipleFeaturizer</span></code></td>
-<td>Class that runs multiple featurizers on the same data <a class="reference external" href="https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.MultipleFeaturizer">[more]</a></td>
+<td><a class="reference external" href="https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.MultipleFeaturizer">[more]</a></td>
 </tr>
 <tr class="row-odd"><td><code class="code docutils literal notranslate"><span class="pre">StackedFeaturizer</span></code></td>
 <td><a class="reference external" href="https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.StackedFeaturizer">[more]</a></td>
@@ -432,7 +432,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/genindex.html b/docs/genindex.html
index 3363354a5..df1f29f4d 100644
--- a/docs/genindex.html
+++ b/docs/genindex.html
@@ -7,7 +7,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>Index &#8212; matminer 0.4.2 documentation</title>
+    <title>Index &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -29,7 +29,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -62,6 +62,7 @@ <h1 id="index">Index</h1>
  | <a href="#R"><strong>R</strong></a>
  | <a href="#S"><strong>S</strong></a>
  | <a href="#T"><strong>T</strong></a>
+ | <a href="#U"><strong>U</strong></a>
  | <a href="#V"><strong>V</strong></a>
  | <a href="#X"><strong>X</strong></a>
  | <a href="#Y"><strong>Y</strong></a>
@@ -265,6 +266,8 @@ <h2 id="A">A</h2>
       <li><a href="matminer.featurizers.html#matminer.featurizers.composition.AtomicOrbitals">AtomicOrbitals (class in matminer.featurizers.composition)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.composition.AtomicPackingEfficiency">AtomicPackingEfficiency (class in matminer.featurizers.composition)</a>
+</li>
+      <li><a href="matminer.datasets.html#matminer.datasets.dataset_retrieval.available_datasets">available_datasets() (in module matminer.datasets.dataset_retrieval)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.site.AverageBondAngle">AverageBondAngle (class in matminer.featurizers.site)</a>
 </li>
@@ -317,6 +320,8 @@ <h2 id="C">C</h2>
       <li><a href="matminer.featurizers.html#matminer.featurizers.structure.ChemicalOrdering">ChemicalOrdering (class in matminer.featurizers.structure)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.site.ChemicalSRO">ChemicalSRO (class in matminer.featurizers.site)</a>
+</li>
+      <li><a href="matminer.featurizers.html#matminer.featurizers.base.BaseFeaturizer.chunksize">chunksize (matminer.featurizers.base.BaseFeaturizer attribute)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.bandstructure.BandFeaturizer.citations">citations() (matminer.featurizers.bandstructure.BandFeaturizer method)</a>
 
@@ -502,7 +507,11 @@ <h2 id="C">C</h2>
 <h2 id="D">D</h2>
 <table style="width: 100%" class="indextable genindextable"><tr>
   <td style="width: 33%; vertical-align: top;"><ul>
-      <li><a href="matminer.datasets.test_datasets.html#matminer.datasets.test_datasets.test_datasets.DataSetTest">DataSetTest (class in matminer.datasets.test_datasets.test_datasets)</a>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest">DataRetrievalTest (class in matminer.datasets.tests.test_dataset_retrieval)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_datasets.DataSetsTest">DataSetsTest (class in matminer.datasets.tests.test_datasets)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.base.DataSetTest">DataSetTest (class in matminer.datasets.tests.base)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.composition.Miedema.deltaH_chem">deltaH_chem() (matminer.featurizers.composition.Miedema method)</a>
 </li>
@@ -511,11 +520,11 @@ <h2 id="D">D</h2>
       <li><a href="matminer.featurizers.html#matminer.featurizers.composition.Miedema.deltaH_struct">deltaH_struct() (matminer.featurizers.composition.Miedema method)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.composition.Miedema.deltaH_topo">deltaH_topo() (matminer.featurizers.composition.Miedema method)</a>
-</li>
-      <li><a href="matminer.utils.html#matminer.utils.data.DemlData">DemlData (class in matminer.utils.data)</a>
 </li>
   </ul></td>
   <td style="width: 33%; vertical-align: top;"><ul>
+      <li><a href="matminer.utils.html#matminer.utils.data.DemlData">DemlData (class in matminer.utils.data)</a>
+</li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.structure.DensityFeatures">DensityFeatures (class in matminer.featurizers.structure)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.conversions.DictToObject">DictToObject (class in matminer.featurizers.conversions)</a>
@@ -839,7 +848,11 @@ <h2 id="F">F</h2>
 </li>
       </ul></li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.base.BaseFeaturizer.featurize_many">featurize_many() (matminer.featurizers.base.BaseFeaturizer method)</a>
+
+      <ul>
+        <li><a href="matminer.featurizers.html#matminer.featurizers.base.MultipleFeaturizer.featurize_many">(matminer.featurizers.base.MultipleFeaturizer method)</a>
 </li>
+      </ul></li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.base.BaseFeaturizer.featurize_wrapper">featurize_wrapper() (matminer.featurizers.base.BaseFeaturizer method)</a>
 
       <ul>
@@ -931,6 +944,8 @@ <h2 id="G">G</h2>
       <li><a href="matminer.featurizers.html#matminer.featurizers.site.GeneralizedRadialDistributionFunction">GeneralizedRadialDistributionFunction (class in matminer.featurizers.site)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.function.generate_expressions_combinations">generate_expressions_combinations() (in module matminer.featurizers.function)</a>
+</li>
+      <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_io.generate_json_files">generate_json_files() (in module matminer.utils.tests.test_io)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.function.FunctionFeaturizer.generate_string_expressions">generate_string_expressions() (matminer.featurizers.function.FunctionFeaturizer method)</a>
 </li>
@@ -1199,6 +1214,8 @@ <h2 id="I">I</h2>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_io.IOTest">IOTest (class in matminer.utils.tests.test_io)</a>
 </li>
       <li><a href="matminer.data_retrieval.html#matminer.data_retrieval.retrieve_MongoDB.is_int">is_int() (in module matminer.data_retrieval.retrieve_MongoDB)</a>
+</li>
+      <li><a href="matminer.utils.html#matminer.utils.utils.is_notebook">is_notebook() (in module matminer.utils.utils)</a>
 </li>
       <li><a href="matminer.utils.html#matminer.utils.pipeline.ItemSelector">ItemSelector (class in matminer.utils.pipeline)</a>
 </li>
@@ -1227,16 +1244,10 @@ <h2 id="L">L</h2>
       <li><a href="matminer.utils.html#matminer.utils.kernels.laplacian_kernel">laplacian_kernel (in module matminer.utils.kernels)</a>
 </li>
       <li><a href="matminer.utils.html#matminer.utils.io.load_dataframe_from_json">load_dataframe_from_json() (in module matminer.utils.io)</a>
-</li>
-      <li><a href="matminer.datasets.html#matminer.datasets.dataframe_loader.load_dielectric_constant">load_dielectric_constant() (in module matminer.datasets.dataframe_loader)</a>
 </li>
   </ul></td>
   <td style="width: 33%; vertical-align: top;"><ul>
-      <li><a href="matminer.datasets.html#matminer.datasets.dataframe_loader.load_elastic_tensor">load_elastic_tensor() (in module matminer.datasets.dataframe_loader)</a>
-</li>
-      <li><a href="matminer.datasets.html#matminer.datasets.dataframe_loader.load_flla">load_flla() (in module matminer.datasets.dataframe_loader)</a>
-</li>
-      <li><a href="matminer.datasets.html#matminer.datasets.dataframe_loader.load_piezoelectric_tensor">load_piezoelectric_tensor() (in module matminer.datasets.dataframe_loader)</a>
+      <li><a href="matminer.datasets.html#matminer.datasets.dataset_retrieval.load_dataset">load_dataset() (in module matminer.datasets.dataset_retrieval)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.site.LocalPropertyDifference">LocalPropertyDifference (class in matminer.featurizers.site)</a>
 </li>
@@ -1266,11 +1277,19 @@ <h2 id="M">M</h2>
 </li>
       <li><a href="matminer.datasets.html#module-matminer.datasets">matminer.datasets (module)</a>
 </li>
-      <li><a href="matminer.datasets.html#module-matminer.datasets.dataframe_loader">matminer.datasets.dataframe_loader (module)</a>
+      <li><a href="matminer.datasets.html#module-matminer.datasets.dataset_retrieval">matminer.datasets.dataset_retrieval (module)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#module-matminer.datasets.tests">matminer.datasets.tests (module)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#module-matminer.datasets.tests.base">matminer.datasets.tests.base (module)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_dataset_retrieval">matminer.datasets.tests.test_dataset_retrieval (module)</a>
 </li>
-      <li><a href="matminer.datasets.test_datasets.html#module-matminer.datasets.test_datasets">matminer.datasets.test_datasets (module)</a>
+      <li><a href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_datasets">matminer.datasets.tests.test_datasets (module)</a>
 </li>
-      <li><a href="matminer.datasets.test_datasets.html#module-matminer.datasets.test_datasets.test_datasets">matminer.datasets.test_datasets.test_datasets (module)</a>
+      <li><a href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_utils">matminer.datasets.tests.test_utils (module)</a>
+</li>
+      <li><a href="matminer.datasets.html#module-matminer.datasets.utils">matminer.datasets.utils (module)</a>
 </li>
       <li><a href="matminer.featurizers.html#module-matminer.featurizers">matminer.featurizers (module)</a>
 </li>
@@ -1298,12 +1317,12 @@ <h2 id="M">M</h2>
 </li>
       <li><a href="matminer.featurizers.utils.html#module-matminer.featurizers.utils.stats">matminer.featurizers.utils.stats (module)</a>
 </li>
+  </ul></td>
+  <td style="width: 33%; vertical-align: top;"><ul>
       <li><a href="matminer.figrecipes.html#module-matminer.figrecipes">matminer.figrecipes (module)</a>
 </li>
       <li><a href="matminer.figrecipes.html#module-matminer.figrecipes.plot">matminer.figrecipes.plot (module)</a>
 </li>
-  </ul></td>
-  <td style="width: 33%; vertical-align: top;"><ul>
       <li><a href="matminer.utils.html#module-matminer.utils">matminer.utils (module)</a>
 </li>
       <li><a href="matminer.utils.html#module-matminer.utils.caching">matminer.utils.caching (module)</a>
@@ -1435,12 +1454,20 @@ <h2 id="S">S</h2>
       <li><a href="matminer.figrecipes.html#matminer.figrecipes.plot.PlotlyFig.scatter_matrix">scatter_matrix() (matminer.figrecipes.plot.PlotlyFig method)</a>
 </li>
       <li><a href="matminer.figrecipes.html#matminer.figrecipes.plot.PlotlyFig.set_arguments">set_arguments() (matminer.figrecipes.plot.PlotlyFig method)</a>
+</li>
+      <li><a href="matminer.featurizers.html#matminer.featurizers.base.BaseFeaturizer.set_chunksize">set_chunksize() (matminer.featurizers.base.BaseFeaturizer method)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.base.BaseFeaturizer.set_n_jobs">set_n_jobs() (matminer.featurizers.base.BaseFeaturizer method)</a>
+
+      <ul>
+        <li><a href="matminer.featurizers.html#matminer.featurizers.base.MultipleFeaturizer.set_n_jobs">(matminer.featurizers.base.MultipleFeaturizer method)</a>
 </li>
-      <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_data.TestDemlData.setUp">setUp() (matminer.utils.tests.test_data.TestDemlData method)</a>
+      </ul></li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.base.DataSetTest.setUp">setUp() (matminer.datasets.tests.base.DataSetTest method)</a>
 
       <ul>
+        <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_data.TestDemlData.setUp">(matminer.utils.tests.test_data.TestDemlData method)</a>
+</li>
         <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_data.TestMagpieData.setUp">(matminer.utils.tests.test_data.TestMagpieData method)</a>
 </li>
         <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_data.TestMixingEnthalpy.setUp">(matminer.utils.tests.test_data.TestMixingEnthalpy method)</a>
@@ -1455,11 +1482,11 @@ <h2 id="S">S</h2>
       <li><a href="matminer.featurizers.utils.html#matminer.featurizers.utils.grdf.Sine">Sine (class in matminer.featurizers.utils.grdf)</a>
 </li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.structure.SineCoulombMatrix">SineCoulombMatrix (class in matminer.featurizers.structure)</a>
-</li>
-      <li><a href="matminer.featurizers.html#matminer.featurizers.site.SiteElementalProperty">SiteElementalProperty (class in matminer.featurizers.site)</a>
 </li>
   </ul></td>
   <td style="width: 33%; vertical-align: top;"><ul>
+      <li><a href="matminer.featurizers.html#matminer.featurizers.site.SiteElementalProperty">SiteElementalProperty (class in matminer.featurizers.site)</a>
+</li>
       <li><a href="matminer.featurizers.html#matminer.featurizers.structure.SiteStatsFingerprint">SiteStatsFingerprint (class in matminer.featurizers.structure)</a>
 </li>
       <li><a href="matminer.featurizers.utils.html#matminer.featurizers.utils.stats.PropertyStats.skewness">skewness() (matminer.featurizers.utils.stats.PropertyStats static method)</a>
@@ -1493,6 +1520,8 @@ <h2 id="T">T</h2>
 <table style="width: 100%" class="indextable genindextable"><tr>
   <td style="width: 33%; vertical-align: top;"><ul>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_io.IOTest.tearDown">tearDown() (matminer.utils.tests.test_io.IOTest method)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest.test_available_datasets">test_available_datasets() (matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest method)</a>
 </li>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_caching.TestCaching.test_cache">test_cache() (matminer.utils.tests.test_caching.TestCaching method)</a>
 </li>
@@ -1500,15 +1529,21 @@ <h2 id="T">T</h2>
 </li>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_conversions.TestConversions.test_dict_to_object">test_dict_to_object() (matminer.utils.tests.test_conversions.TestConversions method)</a>
 </li>
-      <li><a href="matminer.datasets.test_datasets.html#matminer.datasets.test_datasets.test_datasets.DataSetTest.test_dielectric_tensor">test_dielectric_tensor() (matminer.datasets.test_datasets.test_datasets.DataSetTest method)</a>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_datasets.DataSetsTest.test_dielectric_constant">test_dielectric_constant() (matminer.datasets.tests.test_datasets.DataSetsTest method)</a>
 </li>
-      <li><a href="matminer.datasets.test_datasets.html#matminer.datasets.test_datasets.test_datasets.DataSetTest.test_elastic_tensor">test_elastic_tensor() (matminer.datasets.test_datasets.test_datasets.DataSetTest method)</a>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_datasets.DataSetsTest.test_elastic_tensor_2015">test_elastic_tensor_2015() (matminer.datasets.tests.test_datasets.DataSetsTest method)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_utils.UtilsTest.test_fetch_external_dataset">test_fetch_external_dataset() (matminer.datasets.tests.test_utils.UtilsTest method)</a>
 </li>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_flatten_dict.FlattenDictTest.test_flatten_nested_dict">test_flatten_nested_dict() (matminer.utils.tests.test_flatten_dict.FlattenDictTest method)</a>
 </li>
-      <li><a href="matminer.datasets.test_datasets.html#matminer.datasets.test_datasets.test_datasets.DataSetTest.test_flla">test_flla() (matminer.datasets.test_datasets.test_datasets.DataSetTest method)</a>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_datasets.DataSetsTest.test_flla">test_flla() (matminer.datasets.tests.test_datasets.DataSetsTest method)</a>
 </li>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_data.TestMixingEnthalpy.test_get_data">test_get_data() (matminer.utils.tests.test_data.TestMixingEnthalpy method)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_utils.UtilsTest.test_get_data_home">test_get_data_home() (matminer.datasets.tests.test_utils.UtilsTest method)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_utils.UtilsTest.test_get_file_sha256_hash">test_get_file_sha256_hash() (matminer.datasets.tests.test_utils.UtilsTest method)</a>
 </li>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_data.TestDemlData.test_get_oxidation">test_get_oxidation() (matminer.utils.tests.test_data.TestDemlData method)</a>
 
@@ -1532,7 +1567,11 @@ <h2 id="T">T</h2>
 </li>
   </ul></td>
   <td style="width: 33%; vertical-align: top;"><ul>
-      <li><a href="matminer.datasets.test_datasets.html#matminer.datasets.test_datasets.test_datasets.DataSetTest.test_piezoelectric_tensor">test_piezoelectric_tensor() (matminer.datasets.test_datasets.test_datasets.DataSetTest method)</a>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest.test_load_dataset">test_load_dataset() (matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest method)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_utils.UtilsTest.test_load_dataset_dict">test_load_dataset_dict() (matminer.datasets.tests.test_utils.UtilsTest method)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_datasets.DataSetsTest.test_piezoelectric_tensor">test_piezoelectric_tensor() (matminer.datasets.tests.test_datasets.DataSetsTest method)</a>
 </li>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_io.IOTest.test_store_dataframe_as_json">test_store_dataframe_as_json() (matminer.utils.tests.test_io.IOTest method)</a>
 </li>
@@ -1543,6 +1582,8 @@ <h2 id="T">T</h2>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_conversions.TestConversions.test_structure_to_oxidstructure">test_structure_to_oxidstructure() (matminer.utils.tests.test_conversions.TestConversions method)</a>
 </li>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_conversions.TestConversions.test_to_istructure">test_to_istructure() (matminer.utils.tests.test_conversions.TestConversions method)</a>
+</li>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_utils.UtilsTest.test_validate_dataset">test_validate_dataset() (matminer.datasets.tests.test_utils.UtilsTest method)</a>
 </li>
       <li><a href="matminer.utils.tests.html#matminer.utils.tests.test_caching.TestCaching">TestCaching (class in matminer.utils.tests.test_caching)</a>
 </li>
@@ -1573,6 +1614,18 @@ <h2 id="T">T</h2>
   </ul></td>
 </tr></table>
 
+<h2 id="U">U</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%; vertical-align: top;"><ul>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_datasets.DataSetsTest.universal_dataset_check">universal_dataset_check() (matminer.datasets.tests.test_datasets.DataSetsTest method)</a>
+</li>
+  </ul></td>
+  <td style="width: 33%; vertical-align: top;"><ul>
+      <li><a href="matminer.datasets.tests.html#matminer.datasets.tests.test_utils.UtilsTest">UtilsTest (class in matminer.datasets.tests.test_utils)</a>
+</li>
+  </ul></td>
+</tr></table>
+
 <h2 id="V">V</h2>
 <table style="width: 100%" class="indextable genindextable"><tr>
   <td style="width: 33%; vertical-align: top;"><ul>
@@ -1651,7 +1704,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/index.html b/docs/index.html
index 48aa86342..a91c55659 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer (Materials Data Mining) &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer (Materials Data Mining) &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="#">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="#">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -229,7 +229,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="#">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="#">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/installation.html b/docs/installation.html
index 810f6233d..2adcce1eb 100644
--- a/docs/installation.html
+++ b/docs/installation.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>Installing matminer &#8212; matminer 0.4.2 documentation</title>
+    <title>Installing matminer &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -124,7 +124,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.data_retrieval.html b/docs/matminer.data_retrieval.html
index 3c8271da1..fa2cbcbe0 100644
--- a/docs/matminer.data_retrieval.html
+++ b/docs/matminer.data_retrieval.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.data_retrieval package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.data_retrieval package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -598,7 +598,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.datasets.html b/docs/matminer.datasets.html
index 812fd47d8..6b61030ed 100644
--- a/docs/matminer.datasets.html
+++ b/docs/matminer.datasets.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.datasets package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.datasets package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -43,10 +43,13 @@ <h1>matminer.datasets package<a class="headerlink" href="#matminer-datasets-pack
 <h2>Subpackages<a class="headerlink" href="#subpackages" title="Permalink to this headline">¶</a></h2>
 <div class="toctree-wrapper compound">
 <ul>
-<li class="toctree-l1"><a class="reference internal" href="matminer.datasets.test_datasets.html">matminer.datasets.test_datasets package</a><ul>
-<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.test_datasets.html#submodules">Submodules</a></li>
-<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.test_datasets.html#module-matminer.datasets.test_datasets.test_datasets">matminer.datasets.test_datasets.test_datasets module</a></li>
-<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.test_datasets.html#module-matminer.datasets.test_datasets">Module contents</a></li>
+<li class="toctree-l1"><a class="reference internal" href="matminer.datasets.tests.html">matminer.datasets.tests package</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.tests.html#submodules">Submodules</a></li>
+<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests.base">matminer.datasets.tests.base module</a></li>
+<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_dataset_retrieval">matminer.datasets.tests.test_dataset_retrieval module</a></li>
+<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_datasets">matminer.datasets.tests.test_datasets module</a></li>
+<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_utils">matminer.datasets.tests.test_utils module</a></li>
+<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests">Module contents</a></li>
 </ul>
 </li>
 </ul>
@@ -55,71 +58,58 @@ <h2>Subpackages<a class="headerlink" href="#subpackages" title="Permalink to thi
 <div class="section" id="submodules">
 <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
 </div>
-<div class="section" id="module-matminer.datasets.dataframe_loader">
-<span id="matminer-datasets-dataframe-loader-module"></span><h2>matminer.datasets.dataframe_loader module<a class="headerlink" href="#module-matminer.datasets.dataframe_loader" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="module-matminer.datasets.dataset_retrieval">
+<span id="matminer-datasets-dataset-retrieval-module"></span><h2>matminer.datasets.dataset_retrieval module<a class="headerlink" href="#module-matminer.datasets.dataset_retrieval" title="Permalink to this headline">¶</a></h2>
 <dl class="function">
-<dt id="matminer.datasets.dataframe_loader.load_dielectric_constant">
-<code class="descclassname">matminer.datasets.dataframe_loader.</code><code class="descname">load_dielectric_constant</code><span class="sig-paren">(</span><em>include_metadata=False</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.dataframe_loader.load_dielectric_constant" title="Permalink to this definition">¶</a></dt>
-<dd><dl class="docutils">
-<dt>References:</dt>
-<dd>Petousis, I., Mrdjenovich, D., Ballouz, E., Liu, M., Winston, D.,
-Chen, W., Graf, T., Schladt, T. D., Persson, K. A. &amp; Prinz, F. B.
-High-throughput screening of inorganic compounds for the discovery of
-novel dielectric and optical materials. Sci. Data 4, 160134 (2017).</dd>
+<dt id="matminer.datasets.dataset_retrieval.available_datasets">
+<code class="descclassname">matminer.datasets.dataset_retrieval.</code><code class="descname">available_datasets</code><span class="sig-paren">(</span><em>print_datasets=True</em>, <em>print_descriptions=True</em>, <em>sort_method='alphabetical'</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.dataset_retrieval.available_datasets" title="Permalink to this definition">¶</a></dt>
+<dd><p>Function for retrieving the datasets available within matminer.</p>
+<dl class="docutils">
 <dt>Args:</dt>
-<dd>include_metadata (bool): whether to return cif, meta, poscar</dd>
-</dl>
-<p>Returns (pd.DataFrame)</p>
-</dd></dl>
-
-<dl class="function">
-<dt id="matminer.datasets.dataframe_loader.load_elastic_tensor">
-<code class="descclassname">matminer.datasets.dataframe_loader.</code><code class="descname">load_elastic_tensor</code><span class="sig-paren">(</span><em>include_metadata=False</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.dataframe_loader.load_elastic_tensor" title="Permalink to this definition">¶</a></dt>
-<dd><dl class="docutils">
-<dt>References:</dt>
-<dd>Jong, M. De, Chen, W., Angsten, T., Jain, A., Notestine, R., Gamst,
-A., Sluiter, M., Ande, C. K., Zwaag, S. Van Der, Plata, J. J., Toher,
-C., Curtarolo, S., Ceder, G., Persson, K. and Asta, M., “Charting the
-complete elastic properties of inorganic crystalline compounds”,
-Scientific Data volume 2, Article number: 150009 (2015)</dd>
-<dt>Args:</dt>
-<dd>include_metadata (bool): whether to return cif, kpoint_density, poscar</dd>
+<dd><dl class="first last docutils">
+<dt>print_datasets (bool): Whether to, along with returning a</dt>
+<dd>list of dataset names, also print info on each dataset</dd>
+<dt>print_descriptions (bool): Whether to print the description of the</dt>
+<dd>dataset along with the name. Ignored if print_datasets is False</dd>
+<dt>sort_method (str): By what metric to sort the datasets when retrieving</dt>
+<dd><p class="first">their information.</p>
+<p class="last">alphabetical: sorts by dataset name,
+num_entries: sorts by number of dataset entries</p>
+</dd>
 </dl>
-<p>Returns (pd.DataFrame)</p>
-</dd></dl>
-
-<dl class="function">
-<dt id="matminer.datasets.dataframe_loader.load_flla">
-<code class="descclassname">matminer.datasets.dataframe_loader.</code><code class="descname">load_flla</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.dataframe_loader.load_flla" title="Permalink to this definition">¶</a></dt>
-<dd><dl class="docutils">
-<dt>References:</dt>
-<dd><p class="first">1) F. Faber, A. Lindmaa, O.A. von Lilienfeld, R. Armiento,
-“Crystal structure representations for machine learning models of
-formation energies”, Int. J. Quantum Chem. 115 (2015) 1094–1101.
-doi:10.1002/qua.24917.</p>
-<p class="last">2) (raw data) Jain, A., Ong, S. P., Hautier, G., Chen, W., Richards, W. D.,
-Dacek, S., Cholia, S., Gunter, D., Skinner, D., Ceder, G. &amp; Persson,
-K. A. Commentary: The Materials Project: A materials genome approach to
-accelerating materials innovation. APL Mater. 1, 11002 (2013).</p>
 </dd>
 </dl>
-<p>Returns (pd.DataFrame)</p>
+<p>Returns: (list)</p>
 </dd></dl>
 
 <dl class="function">
-<dt id="matminer.datasets.dataframe_loader.load_piezoelectric_tensor">
-<code class="descclassname">matminer.datasets.dataframe_loader.</code><code class="descname">load_piezoelectric_tensor</code><span class="sig-paren">(</span><em>include_metadata=False</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.dataframe_loader.load_piezoelectric_tensor" title="Permalink to this definition">¶</a></dt>
-<dd><dl class="docutils">
-<dt>References:</dt>
-<dd>de Jong, M., Chen, W., Geerlings, H., Asta, M. &amp; Persson, K. A.
-A database to enable discovery and design of piezoelectric materials.
-Sci. Data 2, 150053 (2015)</dd>
+<dt id="matminer.datasets.dataset_retrieval.load_dataset">
+<code class="descclassname">matminer.datasets.dataset_retrieval.</code><code class="descname">load_dataset</code><span class="sig-paren">(</span><em>name</em>, <em>data_home=None</em>, <em>download_if_missing=True</em>, <em>include_metadata=False</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.dataset_retrieval.load_dataset" title="Permalink to this definition">¶</a></dt>
+<dd><p>Loads a dataframe containing the dataset specified with the ‘name’ field.</p>
+<p>Dataset file is stored/loaded from data_home if specified, otherwise at
+the MATMINER_DATA environment variable if set or at matminer/datasets
+by default.</p>
+<dl class="docutils">
 <dt>Args:</dt>
-<dd>include_metadata (bool): whether to return cif, meta, poscar</dd>
+<dd><dl class="first docutils">
+<dt>name (str): keyword specifying what dataset to load, run</dt>
+<dd>matminer.datasets.available_datasets() for options</dd>
+</dl>
+<p>data_home (str): path to folder to look for dataset file</p>
+<dl class="last docutils">
+<dt>download_if_missing (bool): whether to download the dataset if is not</dt>
+<dd>found on disk</dd>
+<dt>include_metadata (bool): optional argument for some datasets with</dt>
+<dd>metadata fields</dd>
 </dl>
-<p>Returns (pd.DataFrame)</p>
+</dd>
+</dl>
+<p>Returns: (pd.DataFrame)</p>
 </dd></dl>
 
+</div>
+<div class="section" id="module-matminer.datasets.utils">
+<span id="matminer-datasets-utils-module"></span><h2>matminer.datasets.utils module<a class="headerlink" href="#module-matminer.datasets.utils" title="Permalink to this headline">¶</a></h2>
 </div>
 <div class="section" id="module-matminer.datasets">
 <span id="module-contents"></span><h2>Module contents<a class="headerlink" href="#module-matminer.datasets" title="Permalink to this headline">¶</a></h2>
@@ -137,7 +127,8 @@ <h3><a href="index.html">Table Of Contents</a></h3>
 <li><a class="reference internal" href="#">matminer.datasets package</a><ul>
 <li><a class="reference internal" href="#subpackages">Subpackages</a></li>
 <li><a class="reference internal" href="#submodules">Submodules</a></li>
-<li><a class="reference internal" href="#module-matminer.datasets.dataframe_loader">matminer.datasets.dataframe_loader module</a></li>
+<li><a class="reference internal" href="#module-matminer.datasets.dataset_retrieval">matminer.datasets.dataset_retrieval module</a></li>
+<li><a class="reference internal" href="#module-matminer.datasets.utils">matminer.datasets.utils module</a></li>
 <li><a class="reference internal" href="#module-matminer.datasets">Module contents</a></li>
 </ul>
 </li>
@@ -175,7 +166,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.datasets.test_datasets.html b/docs/matminer.datasets.test_datasets.html
index c3430e9ae..558abb74e 100644
--- a/docs/matminer.datasets.test_datasets.html
+++ b/docs/matminer.datasets.test_datasets.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.datasets.test_datasets package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.datasets.test_datasets package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -42,37 +42,11 @@ <h1>matminer.datasets.test_datasets package<a class="headerlink" href="#matminer
 <div class="section" id="submodules">
 <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
 </div>
-<div class="section" id="module-matminer.datasets.test_datasets.test_datasets">
-<span id="matminer-datasets-test-datasets-test-datasets-module"></span><h2>matminer.datasets.test_datasets.test_datasets module<a class="headerlink" href="#module-matminer.datasets.test_datasets.test_datasets" title="Permalink to this headline">¶</a></h2>
-<dl class="class">
-<dt id="matminer.datasets.test_datasets.test_datasets.DataSetTest">
-<em class="property">class </em><code class="descclassname">matminer.datasets.test_datasets.test_datasets.</code><code class="descname">DataSetTest</code><span class="sig-paren">(</span><em>methodName='runTest'</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.test_datasets.test_datasets.DataSetTest" title="Permalink to this definition">¶</a></dt>
-<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">unittest.case.TestCase</span></code></p>
-<dl class="method">
-<dt id="matminer.datasets.test_datasets.test_datasets.DataSetTest.test_dielectric_tensor">
-<code class="descname">test_dielectric_tensor</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.test_datasets.test_datasets.DataSetTest.test_dielectric_tensor" title="Permalink to this definition">¶</a></dt>
-<dd></dd></dl>
-
-<dl class="method">
-<dt id="matminer.datasets.test_datasets.test_datasets.DataSetTest.test_elastic_tensor">
-<code class="descname">test_elastic_tensor</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.test_datasets.test_datasets.DataSetTest.test_elastic_tensor" title="Permalink to this definition">¶</a></dt>
-<dd></dd></dl>
-
-<dl class="method">
-<dt id="matminer.datasets.test_datasets.test_datasets.DataSetTest.test_flla">
-<code class="descname">test_flla</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.test_datasets.test_datasets.DataSetTest.test_flla" title="Permalink to this definition">¶</a></dt>
-<dd></dd></dl>
-
-<dl class="method">
-<dt id="matminer.datasets.test_datasets.test_datasets.DataSetTest.test_piezoelectric_tensor">
-<code class="descname">test_piezoelectric_tensor</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.test_datasets.test_datasets.DataSetTest.test_piezoelectric_tensor" title="Permalink to this definition">¶</a></dt>
-<dd></dd></dl>
-
-</dd></dl>
-
+<div class="section" id="matminer-datasets-test-datasets-test-datasets-module">
+<h2>matminer.datasets.test_datasets.test_datasets module<a class="headerlink" href="#matminer-datasets-test-datasets-test-datasets-module" title="Permalink to this headline">¶</a></h2>
 </div>
-<div class="section" id="module-matminer.datasets.test_datasets">
-<span id="module-contents"></span><h2>Module contents<a class="headerlink" href="#module-matminer.datasets.test_datasets" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="module-contents">
+<h2>Module contents<a class="headerlink" href="#module-contents" title="Permalink to this headline">¶</a></h2>
 </div>
 </div>
 
@@ -86,8 +60,8 @@ <h3><a href="index.html">Table Of Contents</a></h3>
   <ul>
 <li><a class="reference internal" href="#">matminer.datasets.test_datasets package</a><ul>
 <li><a class="reference internal" href="#submodules">Submodules</a></li>
-<li><a class="reference internal" href="#module-matminer.datasets.test_datasets.test_datasets">matminer.datasets.test_datasets.test_datasets module</a></li>
-<li><a class="reference internal" href="#module-matminer.datasets.test_datasets">Module contents</a></li>
+<li><a class="reference internal" href="#matminer-datasets-test-datasets-test-datasets-module">matminer.datasets.test_datasets.test_datasets module</a></li>
+<li><a class="reference internal" href="#module-contents">Module contents</a></li>
 </ul>
 </li>
 </ul>
@@ -124,7 +98,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.datasets.tests.html b/docs/matminer.datasets.tests.html
new file mode 100644
index 000000000..976019bd5
--- /dev/null
+++ b/docs/matminer.datasets.tests.html
@@ -0,0 +1,213 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    <title>matminer.datasets.tests package &#8212; matminer 0.4.3 documentation</title>
+    <link rel="stylesheet" href="_static/nature.css" type="text/css" />
+    <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+    <script type="text/javascript" src="_static/documentation_options.js"></script>
+    <script type="text/javascript" src="_static/jquery.js"></script>
+    <script type="text/javascript" src="_static/underscore.js"></script>
+    <script type="text/javascript" src="_static/doctools.js"></script>
+    <link rel="index" title="Index" href="genindex.html" />
+    <link rel="search" title="Search" href="search.html" />
+ 
+<link href='https://fonts.googleapis.com/css?family=Lato:400,700' rel='stylesheet' type='text/css'>
+
+  </head><body>
+    <div class="related" role="navigation" aria-label="related navigation">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="genindex.html" title="General Index"
+             accesskey="I">index</a></li>
+        <li class="right" >
+          <a href="py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
+      </ul>
+    </div>  
+
+    <div class="document">
+      <div class="documentwrapper">
+        <div class="bodywrapper">
+          <div class="body" role="main">
+            
+  <div class="section" id="matminer-datasets-tests-package">
+<h1>matminer.datasets.tests package<a class="headerlink" href="#matminer-datasets-tests-package" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="submodules">
+<h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
+</div>
+<div class="section" id="module-matminer.datasets.tests.base">
+<span id="matminer-datasets-tests-base-module"></span><h2>matminer.datasets.tests.base module<a class="headerlink" href="#module-matminer.datasets.tests.base" title="Permalink to this headline">¶</a></h2>
+<dl class="class">
+<dt id="matminer.datasets.tests.base.DataSetTest">
+<em class="property">class </em><code class="descclassname">matminer.datasets.tests.base.</code><code class="descname">DataSetTest</code><span class="sig-paren">(</span><em>methodName='runTest'</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.base.DataSetTest" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">unittest.case.TestCase</span></code></p>
+<dl class="method">
+<dt id="matminer.datasets.tests.base.DataSetTest.setUp">
+<code class="descname">setUp</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.base.DataSetTest.setUp" title="Permalink to this definition">¶</a></dt>
+<dd><p>Hook method for setting up the test fixture before exercising it.</p>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+<div class="section" id="module-matminer.datasets.tests.test_dataset_retrieval">
+<span id="matminer-datasets-tests-test-dataset-retrieval-module"></span><h2>matminer.datasets.tests.test_dataset_retrieval module<a class="headerlink" href="#module-matminer.datasets.tests.test_dataset_retrieval" title="Permalink to this headline">¶</a></h2>
+<dl class="class">
+<dt id="matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest">
+<em class="property">class </em><code class="descclassname">matminer.datasets.tests.test_dataset_retrieval.</code><code class="descname">DataRetrievalTest</code><span class="sig-paren">(</span><em>methodName='runTest'</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#matminer.datasets.tests.base.DataSetTest" title="matminer.datasets.tests.base.DataSetTest"><code class="xref py py-class docutils literal notranslate"><span class="pre">matminer.datasets.tests.base.DataSetTest</span></code></a></p>
+<dl class="method">
+<dt id="matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest.test_available_datasets">
+<code class="descname">test_available_datasets</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest.test_available_datasets" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest.test_load_dataset">
+<code class="descname">test_load_dataset</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_dataset_retrieval.DataRetrievalTest.test_load_dataset" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+</div>
+<div class="section" id="module-matminer.datasets.tests.test_datasets">
+<span id="matminer-datasets-tests-test-datasets-module"></span><h2>matminer.datasets.tests.test_datasets module<a class="headerlink" href="#module-matminer.datasets.tests.test_datasets" title="Permalink to this headline">¶</a></h2>
+<dl class="class">
+<dt id="matminer.datasets.tests.test_datasets.DataSetsTest">
+<em class="property">class </em><code class="descclassname">matminer.datasets.tests.test_datasets.</code><code class="descname">DataSetsTest</code><span class="sig-paren">(</span><em>methodName='runTest'</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_datasets.DataSetsTest" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#matminer.datasets.tests.base.DataSetTest" title="matminer.datasets.tests.base.DataSetTest"><code class="xref py py-class docutils literal notranslate"><span class="pre">matminer.datasets.tests.base.DataSetTest</span></code></a></p>
+<dl class="method">
+<dt id="matminer.datasets.tests.test_datasets.DataSetsTest.test_dielectric_constant">
+<code class="descname">test_dielectric_constant</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_datasets.DataSetsTest.test_dielectric_constant" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_datasets.DataSetsTest.test_elastic_tensor_2015">
+<code class="descname">test_elastic_tensor_2015</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_datasets.DataSetsTest.test_elastic_tensor_2015" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_datasets.DataSetsTest.test_flla">
+<code class="descname">test_flla</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_datasets.DataSetsTest.test_flla" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_datasets.DataSetsTest.test_piezoelectric_tensor">
+<code class="descname">test_piezoelectric_tensor</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_datasets.DataSetsTest.test_piezoelectric_tensor" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_datasets.DataSetsTest.universal_dataset_check">
+<code class="descname">universal_dataset_check</code><span class="sig-paren">(</span><em>dataset_name</em>, <em>object_headers=None</em>, <em>numeric_headers=None</em>, <em>bool_headers=None</em>, <em>metadata_headers=None</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_datasets.DataSetsTest.universal_dataset_check" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+</div>
+<div class="section" id="module-matminer.datasets.tests.test_utils">
+<span id="matminer-datasets-tests-test-utils-module"></span><h2>matminer.datasets.tests.test_utils module<a class="headerlink" href="#module-matminer.datasets.tests.test_utils" title="Permalink to this headline">¶</a></h2>
+<dl class="class">
+<dt id="matminer.datasets.tests.test_utils.UtilsTest">
+<em class="property">class </em><code class="descclassname">matminer.datasets.tests.test_utils.</code><code class="descname">UtilsTest</code><span class="sig-paren">(</span><em>methodName='runTest'</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_utils.UtilsTest" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <a class="reference internal" href="#matminer.datasets.tests.base.DataSetTest" title="matminer.datasets.tests.base.DataSetTest"><code class="xref py py-class docutils literal notranslate"><span class="pre">matminer.datasets.tests.base.DataSetTest</span></code></a></p>
+<dl class="method">
+<dt id="matminer.datasets.tests.test_utils.UtilsTest.test_fetch_external_dataset">
+<code class="descname">test_fetch_external_dataset</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_utils.UtilsTest.test_fetch_external_dataset" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_utils.UtilsTest.test_get_data_home">
+<code class="descname">test_get_data_home</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_utils.UtilsTest.test_get_data_home" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_utils.UtilsTest.test_get_file_sha256_hash">
+<code class="descname">test_get_file_sha256_hash</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_utils.UtilsTest.test_get_file_sha256_hash" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_utils.UtilsTest.test_load_dataset_dict">
+<code class="descname">test_load_dataset_dict</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_utils.UtilsTest.test_load_dataset_dict" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="method">
+<dt id="matminer.datasets.tests.test_utils.UtilsTest.test_validate_dataset">
+<code class="descname">test_validate_dataset</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.datasets.tests.test_utils.UtilsTest.test_validate_dataset" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</dd></dl>
+
+</div>
+<div class="section" id="module-matminer.datasets.tests">
+<span id="module-contents"></span><h2>Module contents<a class="headerlink" href="#module-matminer.datasets.tests" title="Permalink to this headline">¶</a></h2>
+</div>
+</div>
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar" role="navigation" aria-label="main navigation">
+        <div class="sphinxsidebarwrapper">
+  <h3><a href="index.html">Table Of Contents</a></h3>
+  <ul>
+<li><a class="reference internal" href="#">matminer.datasets.tests package</a><ul>
+<li><a class="reference internal" href="#submodules">Submodules</a></li>
+<li><a class="reference internal" href="#module-matminer.datasets.tests.base">matminer.datasets.tests.base module</a></li>
+<li><a class="reference internal" href="#module-matminer.datasets.tests.test_dataset_retrieval">matminer.datasets.tests.test_dataset_retrieval module</a></li>
+<li><a class="reference internal" href="#module-matminer.datasets.tests.test_datasets">matminer.datasets.tests.test_datasets module</a></li>
+<li><a class="reference internal" href="#module-matminer.datasets.tests.test_utils">matminer.datasets.tests.test_utils module</a></li>
+<li><a class="reference internal" href="#module-matminer.datasets.tests">Module contents</a></li>
+</ul>
+</li>
+</ul>
+
+  <div role="note" aria-label="source link">
+    <h3>This Page</h3>
+    <ul class="this-page-menu">
+      <li><a href="_sources/matminer.datasets.tests.rst.txt"
+            rel="nofollow">Show Source</a></li>
+    </ul>
+   </div>
+<div id="searchbox" style="display: none" role="search">
+  <h3>Quick search</h3>
+    <div class="searchformwrapper">
+    <form class="search" action="search.html" method="get">
+      <input type="text" name="q" />
+      <input type="submit" value="Go" />
+      <input type="hidden" name="check_keywords" value="yes" />
+      <input type="hidden" name="area" value="default" />
+    </form>
+    </div>
+</div>
+<script type="text/javascript">$('#searchbox').show(0);</script>
+        </div>
+      </div>
+      <div class="clearer"></div>
+    </div>
+    <div class="related" role="navigation" aria-label="related navigation">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="genindex.html" title="General Index"
+             >index</a></li>
+        <li class="right" >
+          <a href="py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
+      </ul>
+    </div>
+
+    <div class="footer" role="contentinfo">
+        &#169; Copyright 2015, Anubhav Jain.
+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.7.2.
+    </div>
+
+  </body>
+</html>
\ No newline at end of file
diff --git a/docs/matminer.descriptors.html b/docs/matminer.descriptors.html
index 5a506ba1d..ff6b6dc92 100644
--- a/docs/matminer.descriptors.html
+++ b/docs/matminer.descriptors.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.descriptors package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.descriptors package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -110,7 +110,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.distance_metrics.html b/docs/matminer.distance_metrics.html
index f496b5dec..8392b6a59 100644
--- a/docs/matminer.distance_metrics.html
+++ b/docs/matminer.distance_metrics.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.distance_metrics package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.distance_metrics package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -102,7 +102,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.featurizers.data_files.html b/docs/matminer.featurizers.data_files.html
index a58b72123..95548508b 100644
--- a/docs/matminer.featurizers.data_files.html
+++ b/docs/matminer.featurizers.data_files.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.featurizers.data_files package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.featurizers.data_files package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -98,7 +98,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.featurizers.html b/docs/matminer.featurizers.html
index e39f3cbc9..77a78b3a5 100644
--- a/docs/matminer.featurizers.html
+++ b/docs/matminer.featurizers.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.featurizers package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.featurizers package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -360,13 +360,26 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 utility function and users who want the data in a ML-ready format (list) can
 call <cite>featurize</cite>. See <cite>PartialRadialDistributionFunction</cite> for an example of
 this concept.</p>
+<p>An additional factor to consider is the chunksize for data parallelisation.
+For lightweight computational tasks, the overhead associated with passing
+data from <cite>multiprocessing.Pool.map()</cite> to the function being parallelised
+can increase the time taken for all tasks to be completed. By setting
+the <cite>self._chunksize</cite> argument, the overhead associated with passing data
+to the tasks can be reduced. Note that there is only an advantage to using
+chunksize when the time taken to pass the data from <cite>map</cite> to the function
+call is within several orders of magnitude to that of the function call
+itself. For computationally expensive featurizers, the default
+chunksize of 1 will be the most efficient. However, for more lightweight
+featurizers, it is recommended that the implementor trial a range of
+chunksize values to find the optimum. As a general rule of thumb, if the
+featurize function takes 0.1 seconds or less, a chunksize of around 30 will
+perform best. For longer featurize times, a chunksize of 1 should be used.</p>
 <p>## Documenting a BaseFeaturizer</p>
 <p>The class documentation for each featurizer must contain a description of
-the options and the features that will be computed. The options of the class</p>
-<blockquote>
-<div>must all be defined in the <cite>__init__</cite> function of the class, and we
-recommend documenting them using the</div></blockquote>
-<p>[Google style](<a class="reference external" href="https://google.github.io/styleguide/pyguide.html">https://google.github.io/styleguide/pyguide.html</a>).</p>
+the options and the features that will be computed. The options of the class
+must all be defined in the <cite>__init__</cite> function of the class, and we
+recommend documenting them using the
+[Google style](<a class="reference external" href="https://google.github.io/styleguide/pyguide.html">https://google.github.io/styleguide/pyguide.html</a>).</p>
 <p>For auto-generated documentation purposes, the first line of the featurizer
 doc should come under the class declaration (not under __init__) and should
 be a one line summary of the featurizer.</p>
@@ -381,6 +394,11 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 dataframe is without having to read the Python code. You do not need to
 explain all of the math/algorithms behind each feature for them to be able
 to reproduce the feature, just to get an idea what it is.</p>
+<dl class="attribute">
+<dt id="matminer.featurizers.base.BaseFeaturizer.chunksize">
+<code class="descname">chunksize</code><a class="headerlink" href="#matminer.featurizers.base.BaseFeaturizer.chunksize" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
 <dl class="method">
 <dt id="matminer.featurizers.base.BaseFeaturizer.citations">
 <code class="descname">citations</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.BaseFeaturizer.citations" title="Permalink to this definition">¶</a></dt>
@@ -553,6 +571,12 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 <code class="descname">n_jobs</code><a class="headerlink" href="#matminer.featurizers.base.BaseFeaturizer.n_jobs" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
+<dl class="method">
+<dt id="matminer.featurizers.base.BaseFeaturizer.set_chunksize">
+<code class="descname">set_chunksize</code><span class="sig-paren">(</span><em>chunksize</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.BaseFeaturizer.set_chunksize" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set the chunksize used for Pool.map parallelisation.</p>
+</dd></dl>
+
 <dl class="method">
 <dt id="matminer.featurizers.base.BaseFeaturizer.set_n_jobs">
 <code class="descname">set_n_jobs</code><span class="sig-paren">(</span><em>n_jobs</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.BaseFeaturizer.set_n_jobs" title="Permalink to this definition">¶</a></dt>
@@ -569,19 +593,27 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 
 <dl class="class">
 <dt id="matminer.featurizers.base.MultipleFeaturizer">
-<em class="property">class </em><code class="descclassname">matminer.featurizers.base.</code><code class="descname">MultipleFeaturizer</code><span class="sig-paren">(</span><em>featurizers</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.MultipleFeaturizer" title="Permalink to this definition">¶</a></dt>
+<em class="property">class </em><code class="descclassname">matminer.featurizers.base.</code><code class="descname">MultipleFeaturizer</code><span class="sig-paren">(</span><em>featurizers</em>, <em>iterate_over_entries=True</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.MultipleFeaturizer" title="Permalink to this definition">¶</a></dt>
 <dd><p>Bases: <a class="reference internal" href="#matminer.featurizers.base.BaseFeaturizer" title="matminer.featurizers.base.BaseFeaturizer"><code class="xref py py-class docutils literal notranslate"><span class="pre">matminer.featurizers.base.BaseFeaturizer</span></code></a></p>
-<p>Class that runs multiple featurizers on the same data
-All featurizers must take the same kind of data as input
+<p>Class to run multiple featurizers on the same input data.</p>
+<p>All featurizers must take the same kind of data as input
 to the featurize function.</p>
-<dl class="method">
-<dt id="matminer.featurizers.base.MultipleFeaturizer.__init__">
-<code class="descname">__init__</code><span class="sig-paren">(</span><em>featurizers</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.MultipleFeaturizer.__init__" title="Permalink to this definition">¶</a></dt>
-<dd><p>Create a new instance of this featurizer.</p>
 <dl class="docutils">
 <dt>Args:</dt>
-<dd>featurizers ([BaseFeaturizer]): list of featurizers to run.</dd>
+<dd><p class="first">featurizers (list of BaseFeaturizer): A list of featurizers to run.
+iterate_over_entries (bool): Whether to iterate over the entries or</p>
+<blockquote class="last">
+<div>featurizers. Iterating over entries will enable increased caching
+but will only display a single progress bar for all featurizers.
+If set to False, iteration will be performed over featurizers,
+resulting in reduced caching but individual progress bars for each
+featurizer.</div></blockquote>
+</dd>
 </dl>
+<dl class="method">
+<dt id="matminer.featurizers.base.MultipleFeaturizer.__init__">
+<code class="descname">__init__</code><span class="sig-paren">(</span><em>featurizers</em>, <em>iterate_over_entries=True</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.MultipleFeaturizer.__init__" title="Permalink to this definition">¶</a></dt>
+<dd><p>Initialize self.  See help(type(self)) for accurate signature.</p>
 </dd></dl>
 
 <dl class="method">
@@ -621,6 +653,32 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 </dl>
 </dd></dl>
 
+<dl class="method">
+<dt id="matminer.featurizers.base.MultipleFeaturizer.featurize_many">
+<code class="descname">featurize_many</code><span class="sig-paren">(</span><em>entries</em>, <em>ignore_errors=False</em>, <em>return_errors=False</em>, <em>pbar=True</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.MultipleFeaturizer.featurize_many" title="Permalink to this definition">¶</a></dt>
+<dd><p>Featurize a list of entries.</p>
+<p>If <cite>featurize</cite> takes multiple inputs, supply inputs as a list of tuples.</p>
+<p>Featurize_many supports entries as a list, tuple, numpy array,
+Pandas Series, or Pandas DataFrame.</p>
+<dl class="docutils">
+<dt>Args:</dt>
+<dd><p class="first">entries (list-like object): A list of entries to be featurized.
+ignore_errors (bool): Returns NaN for entries where exceptions are</p>
+<blockquote>
+<div>thrown if True. If False, exceptions are thrown as normal.</div></blockquote>
+<dl class="docutils">
+<dt>return_errors (bool): If True, returns the feature list as</dt>
+<dd>determined by ignore_errors with traceback strings added
+as an extra ‘feature’. Entries which featurize without
+exceptions have this extra feature set to NaN.</dd>
+</dl>
+<p class="last">pbar (bool): Show a progress bar for featurization if True.</p>
+</dd>
+<dt>Returns:</dt>
+<dd>(list) features for each entry.</dd>
+</dl>
+</dd></dl>
+
 <dl class="method">
 <dt id="matminer.featurizers.base.MultipleFeaturizer.featurize_wrapper">
 <code class="descname">featurize_wrapper</code><span class="sig-paren">(</span><em>x</em>, <em>return_errors=False</em>, <em>ignore_errors=False</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.MultipleFeaturizer.featurize_wrapper" title="Permalink to this definition">¶</a></dt>
@@ -673,6 +731,12 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 </dl>
 </dd></dl>
 
+<dl class="method">
+<dt id="matminer.featurizers.base.MultipleFeaturizer.set_n_jobs">
+<code class="descname">set_n_jobs</code><span class="sig-paren">(</span><em>n_jobs</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.featurizers.base.MultipleFeaturizer.set_n_jobs" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set the number of threads for this</p>
+</dd></dl>
+
 </dd></dl>
 
 <dl class="class">
@@ -7379,7 +7443,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.featurizers.utils.html b/docs/matminer.featurizers.utils.html
index abc01f30e..5497accf6 100644
--- a/docs/matminer.featurizers.utils.html
+++ b/docs/matminer.featurizers.utils.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.featurizers.utils package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.featurizers.utils package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -508,7 +508,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.figrecipes.html b/docs/matminer.figrecipes.html
index e22110216..e538459a7 100644
--- a/docs/matminer.figrecipes.html
+++ b/docs/matminer.figrecipes.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.figrecipes package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.figrecipes package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -686,7 +686,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.figrecipes.matplotlib.examples.html b/docs/matminer.figrecipes.matplotlib.examples.html
index d0bb74568..afa5a86ef 100644
--- a/docs/matminer.figrecipes.matplotlib.examples.html
+++ b/docs/matminer.figrecipes.matplotlib.examples.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.figrecipes.matplotlib.examples package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.figrecipes.matplotlib.examples package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -102,7 +102,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.figrecipes.matplotlib.html b/docs/matminer.figrecipes.matplotlib.html
index bea3f7477..b15115f68 100644
--- a/docs/matminer.figrecipes.matplotlib.html
+++ b/docs/matminer.figrecipes.matplotlib.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.figrecipes.matplotlib package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.figrecipes.matplotlib package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -113,7 +113,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.figrecipes.plotly.html b/docs/matminer.figrecipes.plotly.html
index 8f8aae027..126bcb24f 100644
--- a/docs/matminer.figrecipes.plotly.html
+++ b/docs/matminer.figrecipes.plotly.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.figrecipes.plotly package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.figrecipes.plotly package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -98,7 +98,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.html b/docs/matminer.html
index 457454bda..e8eefe64d 100644
--- a/docs/matminer.html
+++ b/docs/matminer.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -56,16 +56,20 @@ <h2>Subpackages<a class="headerlink" href="#subpackages" title="Permalink to thi
 </li>
 <li class="toctree-l1"><a class="reference internal" href="matminer.datasets.html">matminer.datasets package</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="matminer.datasets.html#subpackages">Subpackages</a><ul>
-<li class="toctree-l3"><a class="reference internal" href="matminer.datasets.test_datasets.html">matminer.datasets.test_datasets package</a><ul>
-<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.test_datasets.html#submodules">Submodules</a></li>
-<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.test_datasets.html#module-matminer.datasets.test_datasets.test_datasets">matminer.datasets.test_datasets.test_datasets module</a></li>
-<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.test_datasets.html#module-matminer.datasets.test_datasets">Module contents</a></li>
+<li class="toctree-l3"><a class="reference internal" href="matminer.datasets.tests.html">matminer.datasets.tests package</a><ul>
+<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.tests.html#submodules">Submodules</a></li>
+<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests.base">matminer.datasets.tests.base module</a></li>
+<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_dataset_retrieval">matminer.datasets.tests.test_dataset_retrieval module</a></li>
+<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_datasets">matminer.datasets.tests.test_datasets module</a></li>
+<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests.test_utils">matminer.datasets.tests.test_utils module</a></li>
+<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.tests.html#module-matminer.datasets.tests">Module contents</a></li>
 </ul>
 </li>
 </ul>
 </li>
 <li class="toctree-l2"><a class="reference internal" href="matminer.datasets.html#submodules">Submodules</a></li>
-<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.html#module-matminer.datasets.dataframe_loader">matminer.datasets.dataframe_loader module</a></li>
+<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.html#module-matminer.datasets.dataset_retrieval">matminer.datasets.dataset_retrieval module</a></li>
+<li class="toctree-l2"><a class="reference internal" href="matminer.datasets.html#module-matminer.datasets.utils">matminer.datasets.utils module</a></li>
 <li class="toctree-l2"><a class="reference internal" href="matminer.datasets.html#module-matminer.datasets">Module contents</a></li>
 </ul>
 </li>
@@ -186,7 +190,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.learners.html b/docs/matminer.learners.html
index 6f6883043..ed35782be 100644
--- a/docs/matminer.learners.html
+++ b/docs/matminer.learners.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.learners package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.learners package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -112,7 +112,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.learners.tests.html b/docs/matminer.learners.tests.html
index 8b7dddb41..5b610037a 100644
--- a/docs/matminer.learners.tests.html
+++ b/docs/matminer.learners.tests.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.learners.tests package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.learners.tests package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -98,7 +98,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.models.html b/docs/matminer.models.html
index a201735c5..90a758032 100644
--- a/docs/matminer.models.html
+++ b/docs/matminer.models.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.models package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.models package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -106,7 +106,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.utils.data_files.html b/docs/matminer.utils.data_files.html
index b0ceae39d..2adcc9900 100644
--- a/docs/matminer.utils.data_files.html
+++ b/docs/matminer.utils.data_files.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.utils.data_files package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.utils.data_files package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -98,7 +98,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.utils.html b/docs/matminer.utils.html
index 66b8f8aa3..bbe67c9b0 100644
--- a/docs/matminer.utils.html
+++ b/docs/matminer.utils.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.utils package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.utils package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -458,20 +458,24 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 
 <dl class="function">
 <dt id="matminer.utils.io.store_dataframe_as_json">
-<code class="descclassname">matminer.utils.io.</code><code class="descname">store_dataframe_as_json</code><span class="sig-paren">(</span><em>dataframe</em>, <em>filename</em>, <em>compression=None</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.utils.io.store_dataframe_as_json" title="Permalink to this definition">¶</a></dt>
+<code class="descclassname">matminer.utils.io.</code><code class="descname">store_dataframe_as_json</code><span class="sig-paren">(</span><em>dataframe</em>, <em>filename</em>, <em>compression=None</em>, <em>orient='split'</em><span class="sig-paren">)</span><a class="headerlink" href="#matminer.utils.io.store_dataframe_as_json" title="Permalink to this definition">¶</a></dt>
 <dd><p>Store pandas dataframe as a json file.</p>
 <p>Automatically encodes pymatgen objects as dictionaries.</p>
-<p>One downside is that JSON does not support integer dictionary keys.
-Accordingly, if the index of the dataframe is of integer type, it will
-be converted into strings.</p>
 <dl class="docutils">
 <dt>Args:</dt>
 <dd><p class="first">dataframe (Pandas.Dataframe): A pandas dataframe.
 filename (str): Path to json file.
 compression (str or None): A compression mode. Valid options are “gz”,</p>
-<blockquote class="last">
+<blockquote>
 <div>“bz2”, and None. Defaults to None. If the filename does not end
 in with the correct suffix it will be added automatically.</div></blockquote>
+<dl class="last docutils">
+<dt>orient (str): Determines the format in which the dictionary data is</dt>
+<dd>stored. This takes the same set of arguments as the <cite>orient</cite> option
+in <cite>pandas.DataFrame.to_dict()</cite> function. ‘split’ is recommended
+as it is relatively space efficient and preserves the dtype
+of the index.</dd>
+</dl>
 </dd>
 </dl>
 </dd></dl>
@@ -611,6 +615,13 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 </dl>
 </dd></dl>
 
+<dl class="function">
+<dt id="matminer.utils.utils.is_notebook">
+<code class="descclassname">matminer.utils.utils.</code><code class="descname">is_notebook</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.utils.utils.is_notebook" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check if python is running in an interactive notebook.</p>
+<p>Adapted from: <a class="reference external" href="https://stackoverflow.com/questions/47211324/check-if-module-is-running-in-jupyter-or-not">https://stackoverflow.com/questions/47211324/check-if-module-is-running-in-jupyter-or-not</a></p>
+</dd></dl>
+
 </div>
 <div class="section" id="module-matminer.utils">
 <span id="module-contents"></span><h2>Module contents<a class="headerlink" href="#module-matminer.utils" title="Permalink to this headline">¶</a></h2>
@@ -673,7 +684,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/matminer.utils.tests.html b/docs/matminer.utils.tests.html
index ffcd81571..68b0b9afe 100644
--- a/docs/matminer.utils.tests.html
+++ b/docs/matminer.utils.tests.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer.utils.tests package &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer.utils.tests package &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -231,6 +231,11 @@ <h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this
 
 </dd></dl>
 
+<dl class="function">
+<dt id="matminer.utils.tests.test_io.generate_json_files">
+<code class="descclassname">matminer.utils.tests.test_io.</code><code class="descname">generate_json_files</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#matminer.utils.tests.test_io.generate_json_files" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
 </div>
 <div class="section" id="module-matminer.utils.tests">
 <span id="module-contents"></span><h2>Module contents<a class="headerlink" href="#module-matminer.utils.tests" title="Permalink to this headline">¶</a></h2>
@@ -289,7 +294,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/modules.html b/docs/modules.html
index 84404fbfa..be6b828f9 100644
--- a/docs/modules.html
+++ b/docs/modules.html
@@ -6,7 +6,7 @@
   <head>
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>matminer &#8212; matminer 0.4.2 documentation</title>
+    <title>matminer &#8212; matminer 0.4.3 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
     <script type="text/javascript" src="_static/documentation_options.js"></script>
@@ -28,7 +28,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>  
 
@@ -57,7 +57,8 @@ <h1>matminer<a class="headerlink" href="#matminer" title="Permalink to this head
 <li class="toctree-l3"><a class="reference internal" href="matminer.datasets.html">matminer.datasets package</a><ul>
 <li class="toctree-l4"><a class="reference internal" href="matminer.datasets.html#subpackages">Subpackages</a></li>
 <li class="toctree-l4"><a class="reference internal" href="matminer.datasets.html#submodules">Submodules</a></li>
-<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.html#module-matminer.datasets.dataframe_loader">matminer.datasets.dataframe_loader module</a></li>
+<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.html#module-matminer.datasets.dataset_retrieval">matminer.datasets.dataset_retrieval module</a></li>
+<li class="toctree-l4"><a class="reference internal" href="matminer.datasets.html#module-matminer.datasets.utils">matminer.datasets.utils module</a></li>
 <li class="toctree-l4"><a class="reference internal" href="matminer.datasets.html#module-matminer.datasets">Module contents</a></li>
 </ul>
 </li>
@@ -143,7 +144,7 @@ <h3>Navigation</h3>
         <li class="right" >
           <a href="py-modindex.html" title="Python Module Index"
              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/objects.inv b/docs/objects.inv
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              >modules</a> |</li>
-        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.2 documentation</a> &#187;</li> 
+        <li class="nav-item nav-item-0"><a href="index.html">matminer 0.4.3 documentation</a> &#187;</li> 
       </ul>
     </div>
 
diff --git a/docs/searchindex.js b/docs/searchindex.js
index 6b7565b68..3ab1141a3 100644
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+++ b/docs/searchindex.js
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\ No newline at end of file
diff --git a/docs_rst/changelog.rst b/docs_rst/changelog.rst
index 6de65d0d4..a62fc1c6e 100644
--- a/docs_rst/changelog.rst
+++ b/docs_rst/changelog.rst
@@ -5,6 +5,16 @@
 matminer Changelog
 ==================
 
+**v0.4.3**
+
+* Revamped test / example data loader classes (D. Dopp, A. Ganose, A. Dunn)
+* Add chunksize support to improve performance of dataframe featurization (A. Ganose)
+* Improve performance of BandCenter with large coefficients (A. Faghaninia)
+* Revamp of MultiFeaturizer (A. Ganose)
+* Custom progress bar for running in notebook (A. Ganose)
+* Improved multi-index for conversion featurizerse (A. Ganose)
+* Minor fixes / improvements (D. Dopp, A. Ganose, A. Faghaninia)
+
 **v0.4.2**
 
 * Refactor conversion utils to be featurizers for consistency and parallelism (A. Ganose)
diff --git a/docs_rst/contributors.rst b/docs_rst/contributors.rst
index d4d0dd706..e20ada628 100644
--- a/docs_rst/contributors.rst
+++ b/docs_rst/contributors.rst
@@ -23,6 +23,7 @@ Matminer is led by `Anubhav Jain <http://www.anubhavjain.net/>`_ and the Hacking
 * Jason Frost
 * Julien Brenneck
 * Alex Ganose
+* Daniel Dopp
 
 University of Chicago
 ----------------------
diff --git a/docs_rst/featurizer_summary.rst b/docs_rst/featurizer_summary.rst
index 58fa2fe7d..a8e857907 100644
--- a/docs_rst/featurizer_summary.rst
+++ b/docs_rst/featurizer_summary.rst
@@ -34,7 +34,7 @@ Parent classes and meta-featurizers.
 ==========================   ================================================================================================================================================================================================================================================================================================================================================================================================================
 Name                         Description
 ==========================   ================================================================================================================================================================================================================================================================================================================================================================================================================
-:code:`MultipleFeaturizer`   Class that runs multiple featurizers on the same data `[more] <https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.MultipleFeaturizer>`_
+:code:`MultipleFeaturizer`    `[more] <https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.MultipleFeaturizer>`_
 :code:`StackedFeaturizer`     `[more] <https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.StackedFeaturizer>`_
 :code:`BaseFeaturizer`       Abstract class to calculate features from raw materials input data `[more] <https://hackingmaterials.github.io/matminer/matminer.featurizers.html#matminer.featurizers.base.BaseFeaturizer>`_
 ==========================   ================================================================================================================================================================================================================================================================================================================================================================================================================
diff --git a/docs_rst/matminer.datasets.rst b/docs_rst/matminer.datasets.rst
index 58f351884..f70605bc9 100644
--- a/docs_rst/matminer.datasets.rst
+++ b/docs_rst/matminer.datasets.rst
@@ -6,15 +6,23 @@ Subpackages
 
 .. toctree::
 
-    matminer.datasets.test_datasets
+    matminer.datasets.tests
 
 Submodules
 ----------
 
-matminer.datasets.dataframe\_loader module
-------------------------------------------
+matminer.datasets.dataset\_retrieval module
+-------------------------------------------
 
-.. automodule:: matminer.datasets.dataframe_loader
+.. automodule:: matminer.datasets.dataset_retrieval
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+matminer.datasets.utils module
+------------------------------
+
+.. automodule:: matminer.datasets.utils
     :members:
     :undoc-members:
     :show-inheritance:
diff --git a/matminer/__init__.py b/matminer/__init__.py
index 151736495..9e78e8d99 100644
--- a/matminer/__init__.py
+++ b/matminer/__init__.py
@@ -1,3 +1,3 @@
-__version__ = '0.4.2'
+__version__ = '0.4.3'
 
 from matminer.figrecipes.plot import PlotlyFig
diff --git a/setup.py b/setup.py
index 0d1e79bc6..3017b0fa6 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
 if __name__ == "__main__":
     setup(
         name='matminer',
-        version='0.4.2',
+        version='0.4.3',
         description='matminer is a library that contains tools for data mining in Materials Science',
         long_description=open(os.path.join(module_dir, 'README.md')).read(),
         url='https://github.com/hackingmaterials/matminer',