回答編集履歴
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追記
test
CHANGED
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@@ -69,3 +69,45 @@
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"""
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```
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###２つのデータフレームを結合
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```Python
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import pandas as pd
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from io import StringIO
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# テストデータ
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s = """ID,x,y,v1,v2
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A,1,1,10,100
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B,2,2,20,200
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C,3,3,30,300"""
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df1 = pd.read_csv( StringIO(s), index_col=['ID','x','y'])
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s = """ID,x,y,v1,v2
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D,4,4,40,400
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A,1,1,11,111"""
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df2 = pd.read_csv( StringIO(s), index_col=['ID','x','y'])
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df = pd.concat([df1, df2]).groupby(df1.index.names).last()
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```
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