DistancePowerFunction Method

Power distance function. Encapsulates GetDistance() on a newly constructed Distance.PowerDistance object as a Distance.Function delegate.

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

Syntax

C++

Copy

public static DistanceFunction PowerFunction(
	double p,
	double r
)

Public Shared Function PowerFunction ( 
	p As Double,
	r As Double
) As DistanceFunction

public:
static DistanceFunction^ PowerFunction(
	double p, 
	double r
)

static member PowerFunction : 
        p : float * 
        r : float -> DistanceFunction

Parameters

p Double: [Missing <param name="p"/> documentation for "M:CenterSpace.NMath.Core.Distance.PowerFunction(System.Double,System.Double)"]
r Double: [Missing <param name="r"/> documentation for "M:CenterSpace.NMath.Core.Distance.PowerFunction(System.Double,System.Double)"]

Return Value

DistanceFunction

Remarks

The power distance is computed as:

Copy

distance( x, y ) = ( |xi - yi|^p )^1/r

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