ir.utilities
Class Stats

java.lang.Object
  ir.utilities.Stats

public class Stats
extends java.lang.Object

A place to put statistical routines

Constructor Summary

Stats()

Method Summary

static double	covariance(double[] x, double[] y)
static void	main(java.lang.String[] args)
static double	mean(double[] x)
static double	pearsonCorrelation(double[] x, double[] y)
static double	standardDeviation(double[] x)

Methods inherited from class java.lang.Object

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

Constructor Detail

Stats

public Stats()

Method Detail

mean

public static double mean(double[] x)

standardDeviation

public static double standardDeviation(double[] x)

covariance

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

pearsonCorrelation

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

main

public static void main(java.lang.String[] args)