def _dataset_summary(grouped_df):
    dataset = grouped_df.name
    scores = grouped_df.mean().dropna()
    scores.index = ((dataset + '/') + scores.index)
    return scores
def _dataset_summary(grouped_df):
    dataset = grouped_df.name
    scores = grouped_df.mean().dropna()
    scores.index = ((dataset + '/') + scores.index)
    return scores