NMathFunctionsSumIf(Int32, FuncInt32, Boolean, Int32) Method

Calculates the sum of elements in one array based on evaluating a logical function on corresponding elements in another data.

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

Syntax

public static int SumIf(
	int[] data,
	Func<int, bool> function,
	int[] sum
)

Public Shared Function SumIf ( 
	data As Integer(),
	function As Func(Of Integer, Boolean),
	sum As Integer()
) As Integer

public:
static int SumIf(
	array<int>^ data, 
	Func<int, bool>^ function, 
	array<int>^ sum
)

static member SumIf : 
        data : int[] * 
        function : Func<int, bool> * 
        sum : int[] -> int

data Int32: Evaluation data.
function FuncInt32, Boolean: A function that takes an integer and returns a boolean.
sum Int32: Sum data.

Int32
A sum.

Exceptions

Exception	Condition
MismatchedSizeException	Thrown if data and sum do not have the same length;