Returns a new data frame by grouping the index by the specified column.
Namespace:
Extreme.DataAnalysis
Assembly:
Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.1
public DataFrame<(R1 , R ), C> GroupedBy<R1>(
C columnKey
)
Public Function GroupedBy(Of R1) (
columnKey As C
) As DataFrame(Of ( As R1, As R), C)
public:
generic<typename R1>
DataFrame<ValueTuple<R1, R>, C>^ GroupedBy(
C columnKey
)
member GroupedBy :
columnKey : 'C -> DataFrame<ValueTuple<'R1, 'R>, 'C>
Parameters
- columnKey
- Type: C
The key of the grouping column.
Type Parameters
- R1
- The element type of the grouping column.
Return Value
Type:
DataFrameValueTupleR1,
R,
CA new data frame indexed by combining the specified column
with the existing index.
Reference