Package com.opttek.optquest

Class COptQuestKrigMahalanobisDistance

java.lang.Object

com.opttek.optquest.COptQuestKrigMixedDistance

com.opttek.optquest.COptQuestKrigMahalanobisDistance

All Implemented Interfaces:

IKrigDistance

public class COptQuestKrigMahalanobisDistance
extends COptQuestKrigMixedDistance

An implementation of KrigDistance that normalized the variables to be on [0,1] and computed the Euclidean distance after normalization. Additionally if we have a lat/lon pair we use a spherical distance computation, and if we have a categorical variable, we use a Hamming distance.

Constructor Summary

Constructors

Constructor	Description
COptQuestKrigMahalanobisDistance(COptQuestKrigVarInfo varInfo)

Method Summary

Modifier and Type	Method	Description
double	getDistance(double[] v1, double[] v2)	return the distance between two multi dimensional vectors in any arbitrary space.
double[]	getGradient(double[] v1, double[] v2, Double distance)
double[][]	getHessian(double[] v1, double[] v2, Double distance)
IKrigDistance	getProjection(int[] dims)
void	updateState(double[][] space)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

COptQuestKrigMahalanobisDistance

public COptQuestKrigMahalanobisDistance(COptQuestKrigVarInfo varInfo)
                                 throws COptQuestException

Throws:

COptQuestException

Method Details

getDistance

public double getDistance(double[] v1,
 double[] v2)

return the distance between two multi dimensional vectors in any arbitrary space.

Specified by:

getDistance in interface IKrigDistance

Overrides:

getDistance in class COptQuestKrigMixedDistance

Parameters:

v1 - - the one of the two vectors we're computing the distance between

v2 - - the other of the two vectors we're computing the distance between

getGradient

public double[] getGradient(double[] v1,
 double[] v2,
 Double distance)

Specified by:

getGradient in interface IKrigDistance

Overrides:

getGradient in class COptQuestKrigMixedDistance

getHessian

public double[][] getHessian(double[] v1,
 double[] v2,
 Double distance)

Specified by:

getHessian in interface IKrigDistance

Overrides:

getHessian in class COptQuestKrigMixedDistance

getProjection

public IKrigDistance getProjection(int[] dims)
                            throws COptQuestException

Specified by:

getProjection in interface IKrigDistance

Overrides:

getProjection in class COptQuestKrigMixedDistance

Throws:

COptQuestException

updateState

public void updateState(double[][] space)

Specified by:

updateState in interface IKrigDistance

Overrides:

updateState in class COptQuestKrigMixedDistance