RowGroupingProtocol
A type that represents a collection of row selections that have the same value in a column.
Declaration
protocol RowGroupingProtocol : CustomStringConvertibleTopics
Inspecting a Row Grouping
Transforming a Row Grouping
Splitting a Row Grouping
Aggregating a Row Grouping
counts()counts(order:)sums(_:_:order:)sums(_:order:)means(_:_:order:)means(_:order:)minimums(_:_:order:)minimums(_:order:)maximums(_:_:order:)maximums(_:order:)aggregated(on:into:transform:)aggregated(on:naming:transform:)