GroupBy

This namespace is available after calling DataFrame.groupby(...).

GroupBy.__iter__()	Allows iteration over the groups of the groupby operation.
GroupBy.agg(*aggs, **named_aggs)	Compute aggregations for each group of a groupby operation.
GroupBy.all()	Aggregate the groups into Series.
GroupBy.apply(function)	Apply a custom/user-defined function (UDF) over the groups as a sub-DataFrame.
GroupBy.count()	Count the number of values in each group.
GroupBy.first()	Aggregate the first values in the group.
GroupBy.head([n])	Get the first n rows of each group.
GroupBy.last()	Aggregate the last values in the group.
GroupBy.max()	Reduce the groups to the maximal value.
GroupBy.mean()	Reduce the groups to the mean values.
GroupBy.median()	Return the median per group.
GroupBy.min()	Reduce the groups to the minimal value.
GroupBy.n_unique()	Count the unique values per group.
GroupBy.quantile(quantile[, interpolation])	Compute the quantile per group.
GroupBy.sum()	Reduce the groups to the sum.
GroupBy.tail([n])	Get the last n rows of each group.