Data Frame<R, C>.Pivot By<R1, C1> Method
Returns a two-dimensional grouping on the specified columns.
Definition
Namespace: Numerics.NET.DataAnalysis
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.3
C#
A two-dimensional grouping.
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.3
public Pivot<R1, C1> PivotBy<R1, C1>(
C rowKey,
C columnKey
)
Parameters
- rowKey C
- The key to the grouping column for the rows in the pivot table.
- columnKey C
- The key to the grouping column for the columns in the pivot table.
Type Parameters
- R1
- The element type of the row grouping column.
- C1
- The element type of the column grouping column.
Return Value
Pivot<R1, C1>A two-dimensional grouping.
Remarks
This method does not return a data frame. Instead, it creates a Grouping object that can be used to aggregate any vector into a data frame with row and column values taken from the specified key columns.
Exceptions
Key | A column with key rowKey or columnKey was not found in the data frame. |