Answers for "join data by stackung data panda"

7

pd merge on multiple columns

new_df = pd.merge(A_df, B_df,  how='left', left_on=['A_c1','c2'], right_on = ['B_c1','c2'])
Posted by: Guest on March-26-2020
0

how to append a dataframe to another dataframe in pandas

# all_res is list of DataFrames : [ dataframe, dataframe, ... ]
df_res = pd.concat(all_res)
Posted by: Guest on December-21-2020

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