Answers for "panda merge multiple dataframes"

0

pandas concat / merge two dataframe within one dataframe

In [9]: result = pd.concat([df1, df4], axis=1)
Posted by: Guest on July-01-2021
0

Merge multiple dataframs

# compile the list of dataframes you want to merge
data_frames = [df1, df2, df3]

df_merged = reduce(lambda  left,right: pd.merge(left,right,on=['DATE'],
                                            how='outer'), data_frames)

# if you want to fill the values that don't exist in the lines of merged dataframe simply fill with required strings as

df_merged = reduce(lambda  left,right: pd.merge(left,right,on=['DATE'],
                                            how='outer'), data_frames).fillna('void')
Posted by: Guest on September-02-2021

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