join on column pandas
# df1 as main df and use the feild from df2 and map it into df1
df1.merge(df2,on='columnName',how='left')join on column pandas
# df1 as main df and use the feild from df2 and map it into df1
df1.merge(df2,on='columnName',how='left')merge two columns name in one header pandas
df['A'] = df[a_cols].apply(' '.join, axis=1)Copyright © 2021 Codeinu
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