merge dataframe pandas by column code example
Example 1: merge two dataframes based on column
df_outer = pd.merge(df1, df2, on='id', how='outer')
df_outer
Example 2: how to merge two dataframes
df_merge_col = pd.merge(df_row, df3, on='id')
df_merge_col
Example 3: merge dataframe pandas
>>> df1.merge(df2, left_on='lkey', right_on='rkey')
lkey value_x rkey value_y
0 foo 1 foo 5
1 foo 1 foo 8
2 foo 5 foo 5
3 foo 5 foo 8
4 bar 2 bar 6
5 baz 3 baz 7
Example 4: merge two columns pandas
df["period"] = df["Year"] + df["quarter"]
Example 5: merge dataframe
In [46]: result = pd.merge(left, right, how="right", on=["key1", "key2"])
Example 6: merge two dataframes based on column
df_merge_col = pd.merge(df_row, df3, on='id')
df_merge_col