DistanceSquaredEuclideanDistance Method

Computes the squared Euclidean distance between two data sets.

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

Syntax

public static double SquaredEuclideanDistance(
	DoubleVector data1,
	DoubleVector data2
)

Public Shared Function SquaredEuclideanDistance ( 
	data1 As DoubleVector,
	data2 As DoubleVector
) As Double

public:
static double SquaredEuclideanDistance(
	DoubleVector^ data1, 
	DoubleVector^ data2
)

static member SquaredEuclideanDistance : 
        data1 : DoubleVector * 
        data2 : DoubleVector -> float

Parameters

data1 DoubleVector: The first data set.
data2 DoubleVector: The second data set.

Return Value

Double
The distance between data1 and data2.

Exceptions

Exception	Condition
MismatchedSizeException	Thrown if the given data sets do not have equal lengths.

Remarks

This distance is computed as:

Copy

distance( x, y ) = sum ( xi - yi )^2

Squaring the simple Euclidean distance places progressively greater weight on objects that are further apart.
Missing values are allowed. Pairs of elements are excluded from the distance measure when their comparison returns NaN. If all pairs are excluded, NaN is returned for the distance measure.

Reference

Distance Class

CenterSpace.NMath.Core Namespace