0.4.4

Added type checks to TLorentzVector*, TVector3*, TVector2* constructor arguments to prevent common mistakes.

Also fixed a bug related that prevented TLorentzVectorArray + TLorentzVectorArray in some cases. (Nested within a JaggedArray, the class identity of TLorentzVectorArray sometimes wasn't carried through.)

0.4.3

Merged PR #42, which implements TH3.

It also introduces the following breaking changes in TH2:

• xedges, yedges are swapped (to their correct order)
• .numpy() returns a nested structure, like numpy.histogramdd, unlike numpy.histogram2d:

bin_content, (xedges, yedges) = th2.numpy()

for consistency with

bin_content, (xedges, yedges, zedges) = th3.numpy()

0.4.2

@lgray introduced PtEtaPhiMassLorentzVector and PtEtaPhiMassLorentzVectorArray, which internally represent Lorentz vectors in cylindrical/kinematic coordinates, rather than cartesian. This avoids unnecessary conversions to cartesian if your data source is cylindrical/kinematic and you never need cartesian coordinates.

Also, @guitargeek fixed a bug in TLorentzVector caching for cases in which array.content != array.flatten() (non-trivial physical structure for a given logical structure of jagged array).

0.4.1

Strings are now recognized for writing to ROOT files in Python 2 as well.

0.4.0

Now requires awkward 0.8.0 and all access to the awkward library goes through ROOTMethods.awkward.

0.3.4

Remove README from data_files

0.3.3

Includes PR #32: fixes TH2.edges and adds TH2.allnumpy.

0.3.2

Fixed #24, #27, #28, and #30.

0.3.1

Cleaning up the histogram interface to be more mature.

0.3.0

Minimum version for awkward is now 0.7.0.

Histograms now return Numpy arrays instead of lists of numbers for values, allvalues, variances, allvariances.

Added edges, alledges, bins, and allbins.