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pybokeh/left_join_example.ipynb

Created March 1, 2016 19:11
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left_join_example
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left_join_example.ipynb
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"import pandas as pd"
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"ids = [1,2,3,4,5,6,7,8,9,10]\n",
"values = [1,2,3,2,3,1,1,1,3,1]\n",
"\n",
"df1 = pd.DataFrame({'id1':ids, 'values1':values})"
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" id1 values1\n",
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"4 5 3\n",
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"8 9 3\n",
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"df2 = pd.DataFrame({'id2':[1,2,3], 'values2':[10,50,20]})"
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" id2 values2\n",
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" id1 values1 id2 values2\n",
"0 1 1 1 10\n",
"1 2 2 2 50\n",
"2 3 3 3 20\n",
"3 4 2 2 50\n",
"4 5 3 3 20\n",
"5 6 1 1 10\n",
"6 7 1 1 10\n",
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"8 9 3 3 20\n",
"9 10 1 1 10"
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"execution_count": 19,
"metadata": {},
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"source": [
"pd.merge(df1, df2, how='left', left_on='values1', right_on='id2')"
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}
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