Returns a hierarchical grouping consisting of the current index grouped
by the specified grouping values.
Namespace: Extreme.DataAnalysisAssembly: Extreme.Numerics.Net40 (in Extreme.Numerics.Net40.dll) Version: 6.0.16073.0 (6.0.16073.0)
public IGrouping GroupBy<R1>(
IList<R1> keys
)
Public Function GroupBy(Of R1) (
keys As IList(Of R1)
) As IGrouping
public:
generic<typename R1>
IGrouping^ GroupBy(
IList<R1>^ keys
)
member GroupBy :
keys : IList<'R1> -> IGrouping
Parameters
- keys
- Type: System.Collections.GenericIListR1
A list with elements of type R1
that contains the values to group on.
Type Parameters
- R1
- The element type of the grouping vector.
Return Value
Type:
IGroupingA hierarchical index.
Numerical Libraries
Supported in: 6.0
Reference