org.jbpm.sim.report
Class AcklamStatUtil

java.lang.Object
  org.jbpm.sim.report.AcklamStatUtil

public class AcklamStatUtil
extends java.lang.Object

Class contains the implementation of: - Inverse Normal Cummulative Distribution Function Algorythm taken from Sherali Karimov (sherali.karimov@proxima-tech.com) Original algorythm and Perl implementation can be found at: http://www.math.uio.no/~jacklam/notes/invnorm/index.html Author: Peter J. Acklam jacklam@math.uio.no

Constructor Summary

AcklamStatUtil()

Method Summary

static double	erf(double d)
static double	erfc(double d)
static double	erfcx(double d)
static double	getInvCDF(double d, boolean highPrecision)
static double	refine(double x, double d) Refining algorytm is based on Halley rational method for finding roots of equations as described at: http://www.math.uio.no/~jacklam/notes/invnorm/index.html by: Peter J.

Methods inherited from class java.lang.Object

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

Constructor Detail

AcklamStatUtil

public AcklamStatUtil()

Method Detail

getInvCDF

public static double getInvCDF(double d,
                               boolean highPrecision)

refine

public static double refine(double x,
                            double d)

Refining algorytm is based on Halley rational method for finding roots of equations as described at: http://www.math.uio.no/~jacklam/notes/invnorm/index.html by: Peter J. Acklam jacklam@math.uio.no

Parameters:

x -

d -

Returns:

erf

public static double erf(double d)

erfc

public static double erfc(double d)

erfcx

public static double erfcx(double d)