DFStringColumnApply(String, FuncString, String, String, DFStringColumn) Method

Returns a new column with the given name and same size as this column, whose values are the result of applying the given binary function to each element of this column. The first parameter to the binary function is an element of self; the second parameter is the corresponding element of the passed column.

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4

Syntax

C++

Copy

public DFStringColumn Apply(
	string name,
	Func<string, string, string> function,
	DFStringColumn column
)

Public Function Apply ( 
	name As String,
	function As Func(Of String, String, String),
	column As DFStringColumn
) As DFStringColumn

public:
DFStringColumn^ Apply(
	String^ name, 
	Func<String^, String^, String^>^ function, 
	DFStringColumn^ column
)

member Apply : 
        name : string * 
        function : Func<string, string, string> * 
        column : DFStringColumn -> DFStringColumn

Parameters

name String: Name for the new column.
function FuncString, String, String: A delegate object representing a function that takes two string parameters and returns a string.
column DFStringColumn: A column of parameters to function.

Return Value

DFStringColumn
A column with the same name and size as self and with c[i] = function( this[i], column[i] )

Exceptions

Exception	Condition
MismatchedSizeException	Thrown if the passed column is not the same length as this column.

Reference

DFStringColumn Class

Apply Overload

CenterSpace.NMath.Core Namespace