net.myrrix.common
Class SimpleVectorMath

java.lang.Object
  net.myrrix.common.SimpleVectorMath

public final class SimpleVectorMath
extends Object

Method Summary

static double	correlation(float[] x, float[] y)
static double	cosineMeasure(float[] x, float[] y)
static double	dot(float[] x, float[] y)
static double	norm(double[] x)
static double	norm(float[] x)

Methods inherited from class java.lang.Object

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

Method Detail

dot

public static double dot(float[] x,
                         float[] y)

Returns:

dot product of the two given arrays

norm

public static double norm(float[] x)

norm

public static double norm(double[] x)

correlation

public static double correlation(float[] x,
                                 float[] y)

Returns:

Pearson's correlation between the series in the two given arrays

cosineMeasure

public static double cosineMeasure(float[] x,
                                   float[] y)