Turn Pandas Multi-Index into column

Question

I have a dataframe with 2 index levels:

                         value
Trial    measurement
    1              0        13
                   1         3
            


        

Answer 1

The reset_index() is a pandas DataFrame method that will transfer index values into the DataFrame as columns. The default setting for the parameter is drop=False (which will keep the index values as columns).

All you have to do add .reset_index(inplace=True) after the name of the DataFrame:

df.reset_index(inplace=True)