GroupedData API

The groupby call returns GroupedData objects: Dataset.groupby().

Computations or Descriptive Stats

GroupedData.count	Compute count aggregation.
GroupedData.max	Compute grouped max aggregation.
GroupedData.mean	Compute grouped mean aggregation.
GroupedData.min	Compute grouped min aggregation.
GroupedData.std	Compute grouped standard deviation aggregation.
GroupedData.sum	Compute grouped sum aggregation.

Expressions

GroupedData.with_column

Add a new column to each group using an expression.

Function Application

GroupedData.aggregate	Implements an accumulator-based aggregation.
GroupedData.map_groups	Apply the given function to each group of records of this dataset.