516b77610d058cfe3a6f379e8ff9753065d48707,janitor/functions.py,,groupby_agg,#,3208

Before Change

    :returns: A pandas DataFrame.
    
    new_col = df.groupby(by)[agg_column_name].transform(agg)
    df_new = df.assign(**{new_column_name: new_col})
    return df_new


@pf.register_dataframe_accessor("data_description")

After Change

    // convert to list
    // needed when creating a mapping through the iteration
    if isinstance(by, str):
        by = [by]
    // this is a temporary measure, till the minimum Pandas version is 1.1,
    // which supports null values in the group by
    // If any of the grouping columns has null values, we temporarily
    // replace the values with some outrageous value, that should not exist

Instances