GroupBy.groups dict {group name -> group labels}

GroupBy.var(ddof=1, *args, **kwargs)

DataFrameGroupBy.shift(periods=1, freq=None, axis=0)

GroupBy.sem(ddof=1)

DataFrameGroupBy.cov(min_periods=None) Compute pairwise covariance of columns, excluding NA/null values

GroupBy.median()

SeriesGroupBy.value_counts(normalize=False, sort=True, ascending=False, bins=None, dropna=True)

GroupBy.nth(n, dropna=None)

DataFrameGroupBy.fillna(value=None, method=None, axis=None, inplace=False, limit=None, downcast=None, **kwargs)

GroupBy.size()