NMathFunctionsWeightedMedian(DoubleVector, DoubleVector) Method

Returns the weighted median of an array of data with associated non-negative weights. There must be at least one postive non-zero weight.

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

Syntax

public static double WeightedMedian(
	DoubleVector data,
	DoubleVector weights
)

Public Shared Function WeightedMedian ( 
	data As DoubleVector,
	weights As DoubleVector
) As Double

public:
static double WeightedMedian(
	DoubleVector^ data, 
	DoubleVector^ weights
)

static member WeightedMedian : 
        data : DoubleVector * 
        weights : DoubleVector -> float

Exceptions

Exception	Condition
InvalidArgumentException	The two lengths of the data and weights vectors must be equal.
InvalidArgumentException	There must be at least one postive non-zero weight.
InvalidArgumentException	All weights must be non-negative. At least one negative weight was found.

Remarks

If the lower sum of the weights is equal the weight's midpoint, then the average of the adjacent two datapoints is returned.