be.ac.ulg.montefiore.run.totem.util.distribution
Class NormalDistribution

java.lang.Object
  be.ac.ulg.montefiore.run.totem.util.distribution.NormalDistribution

All Implemented Interfaces:

Distribution

public class NormalDistribution
extends java.lang.Object
implements Distribution

This class implements a Normal distribution.

Creation date: 1-Jan-2004

Author:

Jean Lepropre (lepropre@run.montefiore.ulg.ac.be)

Constructor Summary

NormalDistribution()
Initialises a newly created normal distribution with mean equals to 0 and standard deviation equals to 1.

NormalDistribution(double mean, double stdDeviation)
Initialises a newly created NormalDistribution object.

Method Summary

double

generate() Returns a double value according to the Normal distribution.

Methods inherited from class java.lang.Object

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

Constructor Detail

NormalDistribution

public NormalDistribution()

Initialises a newly created normal distribution with mean equals to 0 and standard deviation equals to 1.

NormalDistribution

public NormalDistribution(double mean,
                          double stdDeviation)

Initialises a newly created NormalDistribution object.

Parameters:

mean - The mean of the distribution.

stdDeviation - The standard deviation of the distribution.

Throws:

java.lang.IllegalArgumentException - If stdDeviation is <= 0.

Method Detail

generate

public double generate()

Returns a double value according to the Normal distribution.

Specified by:

generate in interface Distribution