 | FrameExtensionsIndexRowsUsingR, C, R2 Method |
Replace the row index of the frame with a sequence of row keys generated using
a function invoked on each row.
## Parameters
- `frame` - Source data frame whose row index are to be replaced.
- `f` - A function from row (as object series) to new row key value
[category:Data structure manipulation]
Namespace: Deedle
Assembly: Deedle (in Deedle.dll) Version: 1.2
SyntaxC#
public static Frame<R2, C> IndexRowsUsing<R, C, R2>( this Frame<R, C> frame, Func<ObjectSeries<C>, R2> f )
Parameters
- frame
- Type: DeedleFrameR, C
[Missing <param name="frame"/> documentation for "M:Deedle.FrameExtensions.IndexRowsUsing``3(Deedle.Frame{``0,``1},System.Func{Deedle.ObjectSeries{``1},``2})"]
- f
- Type: SystemFuncObjectSeriesC, R2
[Missing <param name="f"/> documentation for "M:Deedle.FrameExtensions.IndexRowsUsing``3(Deedle.Frame{``0,``1},System.Func{Deedle.ObjectSeries{``1},``2})"]
Type Parameters
- R
- C
- R2
Return Value
Type: FrameR2, C[Missing <returns> documentation for "M:Deedle.FrameExtensions.IndexRowsUsing``3(Deedle.Frame{``0,``1},System.Func{Deedle.ObjectSeries{``1},``2})"]
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type FrameR, C. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).See Also