anova.py 文件源码

def anova(data):
    if len(data.groupby(level=1)) <= 2:
        raise Exception('ANOVA requires a secondary index with three or more values')

    return pd.DataFrame(
        [f_oneway(*[v for k, v in data[col].groupby(level=1)]) for col in data.columns],
        columns=['f', 'p'],
        index=data.columns)