hep.lcd.util.statistics
Class StatTools

java.lang.Object
  |
  +--hep.lcd.util.statistics.StatTools

public final class StatTools

extends Object

static class StatTools Provides statistics functions

Source Code:

StatTools.java

Constructor Summary

StatTools()

Method Summary

static double	chi2Df(double chi2, int ndf) Integrated Chi2 probability with ndf free parameters.
static double	chi2Pdf(double chi2, int n) Chi2 probability density function f(Chi2)
static double	incGammaFunc(double a, double x) Incomplete gamma function
static double	lnGamma(double x) logarithmic Gamma function ln Gamma(x)

Methods inherited from class java.lang.Object

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

Constructor Detail

StatTools

public StatTools()

Method Detail

chi2Df

public static double chi2Df(double chi2,
                            int ndf)

Integrated Chi2 probability with ndf free parameters.

incGammaFunc

public static double incGammaFunc(double a,
                                  double x)

Incomplete gamma function

lnGamma

public static double lnGamma(double x)

logarithmic Gamma function ln Gamma(x)

chi2Pdf

public static double chi2Pdf(double chi2,
                             int n)

Chi2 probability density function f(Chi2)