def proportion()

in src/smclarify/bias/metrics/basic_stats.py [0:0]


def proportion(sensitive_facet_index: pd.Series) -> float:
    r"""
    Proportion of examples in sensitive facet.

    :param sensitive_facet_index: boolean column indicating sensitive group
    :return: the fraction of examples in the sensitive facet.
    """
    return sum(sensitive_facet_index) / len(sensitive_facet_index)