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NMathFunctionsIf(IDFColumn, FuncInt32, Boolean, Int32) Method

Creates a new column by applying a logical function to the elements of a column. Elements in the original column that return true are set to the given true value in the new column; elements that return false are not changed.

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4
Syntax
public static IDFColumn If(
	IDFColumn data,
	Func<int, bool> function,
	int ifTrue
)

Parameters

data  IDFColumn
A column.
function  FuncInt32, Boolean
A function that takes an integer and returns a boolean.
ifTrue  Int32
Value in case of true.

Return Value

IDFColumn
A new column.
Exceptions
ExceptionCondition
InvalidArgumentException Thrown if data is not a DFIntColumn.
See Also