MLDataTable.Aggregator
A collection of column operations you can use with a data table’s group method.
Declaration
struct AggregatorOverview
Use one or more MLDataTable.Aggregator instances when you use the group(columnsNamed:aggregators:) method. Each aggregator performs a sequence of one or more MLDataTable.Aggregator.Operations for a single column. Each operation makes a new column in the new data table generated by the method.