13_kmeans_tutorial.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<h1 align='center' style='color:purple'>Clustering With K Means - Python Tutorial</h1>"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 196,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "from sklearn.cluster import KMeans\n",
    "import pandas as pd\n",
    "from sklearn.preprocessing import MinMaxScaler\n",
    "from matplotlib import pyplot as plt\n",
    "%matplotlib inline"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 197,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Name</th>\n",
       "      <th>Age</th>\n",
       "      <th>Income($)</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>Rob</td>\n",
       "      <td>27</td>\n",
       "      <td>70000</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Michael</td>\n",
       "      <td>29</td>\n",
       "      <td>90000</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Mohan</td>\n",
       "      <td>29</td>\n",
       "      <td>61000</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Ismail</td>\n",
       "      <td>28</td>\n",
       "      <td>60000</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>Kory</td>\n",
       "      <td>42</td>\n",
       "      <td>150000</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "      Name  Age  Income($)\n",
       "0      Rob   27      70000\n",
       "1  Michael   29      90000\n",
       "2    Mohan   29      61000\n",
       "3   Ismail   28      60000\n",
       "4     Kory   42     150000"
      ]
     },
     "execution_count": 197,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "df = pd.read_csv(\"income.csv\")\n",
    "df.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 198,
   "metadata": {
    "scrolled": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<matplotlib.text.Text at 0x159c7655ac8>"
      ]
     },
     "execution_count": 198,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
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ZEdsge5gacDcwvb+DJd1N1sIYK2kn2QyxpcAKSQuAp4ArACJii6QVwFayxxZck54OCnA1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\nMzPLnZONmZnlzsnGzMxy52RjZma5+//OoqnYVd1B+gAAAABJRU5ErkJggg==\n",
      "text/plain": [
       "<matplotlib.figure.Figure at 0x159c7609748>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "plt.scatter(df.Age,df['Income($)'])\n",
    "plt.xlabel('Age')\n",
    "plt.ylabel('Income($)')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 199,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([2, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0])"
      ]
     },
     "execution_count": 199,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "km = KMeans(n_clusters=3)\n",
    "y_predicted = km.fit_predict(df[['Age','Income($)']])\n",
    "y_predicted"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 200,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Name</th>\n",
       "      <th>Age</th>\n",
       "      <th>Income($)</th>\n",
       "      <th>cluster</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>Rob</td>\n",
       "      <td>27</td>\n",
       "      <td>70000</td>\n",
       "      <td>2</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Michael</td>\n",
       "      <td>29</td>\n",
       "      <td>90000</td>\n",
       "      <td>2</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Mohan</td>\n",
       "      <td>29</td>\n",
       "      <td>61000</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Ismail</td>\n",
       "      <td>28</td>\n",
       "      <td>60000</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>Kory</td>\n",
       "      <td>42</td>\n",
       "      <td>150000</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "      Name  Age  Income($)  cluster\n",
       "0      Rob   27      70000        2\n",
       "1  Michael   29      90000        2\n",
       "2    Mohan   29      61000        0\n",
       "3   Ismail   28      60000        0\n",
       "4     Kory   42     150000        1"
      ]
     },
     "execution_count": 200,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "df['cluster']=y_predicted\n",
    "df.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 201,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([[  3.29090909e+01,   5.61363636e+04],\n",
       "       [  3.82857143e+01,   1.50000000e+05],\n",
       "       [  3.40000000e+01,   8.05000000e+04]])"
      ]
     },
     "execution_count": 201,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "km.cluster_centers_"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 202,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<matplotlib.legend.Legend at 0x159c7836128>"
      ]
     },
     "execution_count": 202,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": 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eOZHi3sUse2hZtkMqKLnYbVVVVUVdXR1NTU3U1dV1mUQD2Uk2a4DDzawk3Ec5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\n",
      "text/plain": [
       "<matplotlib.figure.Figure at 0x159c7484a90>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "df1 = df[df.cluster==0]\n",
    "df2 = df[df.cluster==1]\n",
    "df3 = df[df.cluster==2]\n",
    "plt.scatter(df1.Age,df1['Income($)'],color='green')\n",
    "plt.scatter(df2.Age,df2['Income($)'],color='red')\n",
    "plt.scatter(df3.Age,df3['Income($)'],color='black')\n",
    "plt.scatter(km.cluster_centers_[:,0],km.cluster_centers_[:,1],color='purple',marker='*',label='centroid')\n",
    "plt.xlabel('Age')\n",
    "plt.ylabel('Income ($)')\n",
    "plt.legend()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<h4 style='color:purple'>Preprocessing using min max scaler</h4>"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 203,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "scaler = MinMaxScaler()\n",
    "\n",
    "scaler.fit(df[['Income($)']])\n",
    "df['Income($)'] = scaler.transform(df[['Income($)']])\n",
    "\n",
    "scaler.fit(df[['Age']])\n",
    "df['Age'] = scaler.transform(df[['Age']])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 204,
   "metadata": {
    "scrolled": false
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Name</th>\n",
       "      <th>Age</th>\n",
       "      <th>Income($)</th>\n",
       "      <th>cluster</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>Rob</td>\n",
       "      <td>0.058824</td>\n",
       "      <td>0.213675</td>\n",
       "      <td>2</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Michael</td>\n",
       "      <td>0.176471</td>\n",
       "      <td>0.384615</td>\n",
       "      <td>2</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Mohan</td>\n",
       "      <td>0.176471</td>\n",
       "      <td>0.136752</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Ismail</td>\n",
       "      <td>0.117647</td>\n",
       "      <td>0.128205</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>Kory</td>\n",
       "      <td>0.941176</td>\n",
       "      <td>0.897436</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "      Name       Age  Income($)  cluster\n",
       "0      Rob  0.058824   0.213675        2\n",
       "1  Michael  0.176471   0.384615        2\n",
       "2    Mohan  0.176471   0.136752        0\n",
       "3   Ismail  0.117647   0.128205        0\n",
       "4     Kory  0.941176   0.897436        1"
      ]
     },
     "execution_count": 204,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "df.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 205,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<matplotlib.collections.PathCollection at 0x159c78f2358>"
      ]
     },
     "execution_count": 205,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": 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E7gIOz2pzGLg3Wm4Fft2t+XZw2aAkLWTBC6qZeTki7geO0loK+URmnomIXe3X9wFHaC2D\nnKK1FPK+7pXc4oVQSZpfpXXumXmEVoB3ntvX8XMCX6i3NEnS9RrqO1QlqVSGuyQVyHCXpAIZ7pJU\nIMNdkgpkuEtSgQx3SSpQtJao9+GDI14FflbDW60AXqvhfZrC/pZtmPo7TH2F+vr7R5m54OZcfQv3\nukTEicyc7HcdvWJ/yzZM/R2mvkLv++u0jCQVyHCXpAKVEO77+11Aj9nfsg1Tf4epr9Dj/jZ+zl2S\n9PtKGLlLkmZpTLhHxJaIOBsRUxGxZ47XIyK+3n79+Yj4UD/qrEuF/n6m3c/TEfFMRNzUjzrrsFBf\nO9p9JCIuR8SdvayvblX6GxG3R8SzEXEmIn7U6xrrVOH/8jsj4nsR8Vy7v11/HkS3RMQTEfFKRLww\nz+u9y6nMHPg/tB4S8t/AHwM3As8BG2a1uQP4PhDArcB/9LvuLvf3o8C72j9vbWp/q/S1o91TtJ4r\ncGe/6+7yv+0o8CIw0T5+T7/r7nJ//xb4avvnMeCXwI39rv06+/vnwIeAF+Z5vWc51ZSR+83AVGae\ny8zXgQPAtllttgFPZssxYDQi3tfrQmuyYH8z85nM/FX78Bit59Y2UZV/W4AvAt8BXullcV1Qpb/3\nAAcz82WAzGxyn6v0N4F3REQAb6cV7pd7W2Y9MvNpWvXPp2c51ZRwHwfOdxxfaJ9bbJumWGxfPk9r\nNNBEC/Y1IsaBTwPf6GFd3VLl3/b9wLsi4ocRcTIi7u1ZdfWr0t9HgD8FLgKngb/JzLd6U17P9Syn\nKj1mT4MrIj5OK9xv63ctXfQ14IHMfKs1uCveDcCHgU8CI8CPI+JYZv6kv2V1zWbgWeATwJ8A/xIR\n/5aZ/9vfspqtKeE+DazuOF7VPrfYNk1RqS8R8UHgcWBrZv6iR7XVrUpfJ4ED7WBfAdwREZcz81Bv\nSqxVlf5eAH6Rmb8BfhMRTwM3AU0M9yr9vQ94KFuT0lMR8VPgA8B/9qbEnupZTjVlWuY4sC4i1kbE\njcBdwOFZbQ4D97avRt8K/Dozf97rQmuyYH8jYgI4CHy24SO6BfuamWszc01mrgH+AfjrhgY7VPu/\n/F3gtoi4ISLeBtwCvNTjOutSpb8v0/qWQkS8F1gPnOtplb3Ts5xqxMg9My9HxP3AUVpX35/IzDMR\nsav9+j5aqyjuAKaA39IaDTRSxf5+CXg38Fh7RHs5G7gJU8W+FqNKfzPzpYj4AfA88BbweGbOubRu\n0FX89/0K8M2IOE1rFckDmdnI3SIj4lvA7cCKiLgAfBlYDr3PKe9QlaQCNWVaRpK0CIa7JBXIcJek\nAhnuklQgw12SCmS4S1KBDHdJKpDhLkkF+j/wcNFP+6aVeQAAAABJRU5ErkJggg==\n",
      "text/plain": [
       "<matplotlib.figure.Figure at 0x159c751a470>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "plt.scatter(df.Age,df['Income($)'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 206,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2])"
      ]
     },
     "execution_count": 206,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "km = KMeans(n_clusters=3)\n",
    "y_predicted = km.fit_predict(df[['Age','Income($)']])\n",
    "y_predicted"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 207,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Name</th>\n",
       "      <th>Age</th>\n",
       "      <th>Income($)</th>\n",
       "      <th>cluster</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>Rob</td>\n",
       "      <td>0.058824</td>\n",
       "      <td>0.213675</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Michael</td>\n",
       "      <td>0.176471</td>\n",
       "      <td>0.384615</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Mohan</td>\n",
       "      <td>0.176471</td>\n",
       "      <td>0.136752</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Ismail</td>\n",
       "      <td>0.117647</td>\n",
       "      <td>0.128205</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>Kory</td>\n",
       "      <td>0.941176</td>\n",
       "      <td>0.897436</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "      Name       Age  Income($)  cluster\n",
       "0      Rob  0.058824   0.213675        0\n",
       "1  Michael  0.176471   0.384615        0\n",
       "2    Mohan  0.176471   0.136752        0\n",
       "3   Ismail  0.117647   0.128205        0\n",
       "4     Kory  0.941176   0.897436        1"
      ]
     },
     "execution_count": 207,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "df['cluster']=y_predicted\n",
    "df.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 208,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([[ 0.1372549 ,  0.11633428],\n",
       "       [ 0.72268908,  0.8974359 ],\n",
       "       [ 0.85294118,  0.2022792 ]])"
      ]
     },
     "execution_count": 208,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "km.cluster_centers_"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 209,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<matplotlib.legend.Legend at 0x159c7982f60>"
      ]
     },
     "execution_count": 209,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": 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      "text/plain": [
       "<matplotlib.figure.Figure at 0x159c782dd30>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "df1 = df[df.cluster==0]\n",
    "df2 = df[df.cluster==1]\n",
    "df3 = df[df.cluster==2]\n",
    "plt.scatter(df1.Age,df1['Income($)'],color='green')\n",
    "plt.scatter(df2.Age,df2['Income($)'],color='red')\n",
    "plt.scatter(df3.Age,df3['Income($)'],color='black')\n",
    "plt.scatter(km.cluster_centers_[:,0],km.cluster_centers_[:,1],color='purple',marker='*',label='centroid')\n",
    "plt.legend()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<h4 style='color:purple'>Elbow Plot</h4>"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 210,
   "metadata": {
    "collapsed": true,
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "sse = []\n",
    "k_rng = range(1,10)\n",
    "for k in k_rng:\n",
    "    km = KMeans(n_clusters=k)\n",
    "    km.fit(df[['Age','Income($)']])\n",
    "    sse.append(km.inertia_)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 211,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[<matplotlib.lines.Line2D at 0x159c7a34978>]"
      ]
     },
     "execution_count": 211,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": 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      "text/plain": [
       "<matplotlib.figure.Figure at 0x159c794b828>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "plt.xlabel('K')\n",
    "plt.ylabel('Sum of squared error')\n",
    "plt.plot(k_rng,sse)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<h4 style='color:purple'>Exercise</h4>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<img src='iris.png' width=200 height=200>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "1. Use iris flower dataset from sklearn library and try to form clusters of flowers using petal width and length features. Drop other two features for simplicity.\n",
    "2. Figure out if any preprocessing such as scaling would help here\n",
    "3. Draw elbow plot and from that figure out optimal value of k"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.6.1"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}