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Pandas combine data frames with same columns

Code examples

6
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combining 2 dataframes pandas 

df_3 = pd.concat([df_1, df_2])
5
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dataframe concatenate 

# Pandas for Python

df['col1 & col2'] = df['col1']+df['col2']

#Output
#col1	col2	col1 & col2
#A1		A2		A1A2
#B1		B2		B1B2
4
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merge two dataframes based on column 

df_outer = pd.merge(df1, df2, on='id', how='outer')

df_outer
0
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pandas combine two data frames with same index and same columns 

pd.merge(df1, df2, left_index=True, right_index=True, how='outer')

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