merge dataframes with same columns code example

Example 1: merge two dataframes based on column

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

df_outer

Example 2: pandas combine two data frames with same index and same columns

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

Example 3: merge two dataframes based on column

df_merge_col = pd.merge(df_row, df3, on='id')

df_merge_col