Answers for "how to append 2 dataframes with same rows"

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')

Posted by: Guest on May-15-2020

combine column in csv python pandas

df['period'] = df[['Year', 'quarter', ...]].agg('-'.join, axis=1)

Posted by: Guest on July-19-2020

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