spotify_confidence/analysis/bayesian/bayesian_base.py [432:441]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    def _add_level_column(self, groupby, level_as_reference):
        level_column = "level_2" if level_as_reference else "level_1"
        if groupby is None:
            groupby_columns = level_column
        else:
            if isinstance(groupby, str):
                groupby_columns = [groupby, level_column]
            else:
                groupby_columns = groupby + [level_column]
        return groupby_columns
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



spotify_confidence/analysis/frequentist/chartify_grapher.py [536:545]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    def _add_level_column(self, groupby, level_as_reference):
        level_column = "level_2" if level_as_reference else "level_1"
        if groupby is None:
            groupby_columns = level_column
        else:
            if isinstance(groupby, str):
                groupby_columns = [groupby, level_column]
            else:
                groupby_columns = groupby + [level_column]
        return groupby_columns
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -