AggregateDslDocs

allows you to compute statistics on the and store the results as a new column using into.

The resulting has the same structure as the original ; instead of the groups, there are new columns of aggregated values created with into.

You can use any of DataFrame Aggregation Statistics or any custom aggregation function.

Aggregated values can be either simple values, data rows or even data frames. Including them in the result using into will lead to creating a value column, a column group, or a frame column respectively in the resulting while preserving the original structure at higher levels.