[英]Pandas populate new dataframe column based on matching columns in another dataframe
[英]Update pandas dataframe based on matching columns of a second dataframe
我认为你需要set_index
的Multiindex
均DataFrame
秒,然后combine_first
或fillna
:
df1 = df_1.set_index(["housenumber", "street"])
df2 = df_2.set_index(["housenumber", "street"])
df = df1.combine_first(df2).reset_index()
df = df1.fillna(df2).reset_index()
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