Catalano.Statistics

Class Correlations

java.lang.Object

Catalano.Statistics.Correlations

public final class Correlations
extends java.lang.Object

Used to compare two vectors in feature space by finding the similarity between the two.

Method Summary

Modifier and Type	Method and Description
static double	PearsonCorrelation(double[] x, double[] y)
static double	PearsonCorrelation(double[] x, double[] y, double meanX, double meanY)
static double	SpearmanCorrelation(double[] x, double[] y)
static double	Tanimoto(double[] p, double[] q) Takes on values between 0 and 1; 1 for identical vectors
static double	VectorInnerProduct(double[] p, double[] q) Inner Product

Methods inherited from class java.lang.Object

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

Method Detail

VectorInnerProduct

public static double VectorInnerProduct(double[] p,
                                        double[] q)

Inner Product

Parameters:

p - Vector 1

q - Vector 2

Returns:

Inner Product

Tanimoto

public static double Tanimoto(double[] p,
                              double[] q)

Takes on values between 0 and 1; 1 for identical vectors

Parameters:

p - Vector 1

q - Vector 2

Returns:

Tanimoto metric

PearsonCorrelation

public static double PearsonCorrelation(double[] x,
                                        double[] y)

PearsonCorrelation

public static double PearsonCorrelation(double[] x,
                                        double[] y,
                                        double meanX,
                                        double meanY)

SpearmanCorrelation

public static double SpearmanCorrelation(double[] x,
                                         double[] y)