be.ac.ulg.montefiore.run.distributions
Class GaussianDistribution

java.lang.Object
  be.ac.ulg.montefiore.run.distributions.GaussianDistribution

All Implemented Interfaces:

RandomDistribution, java.io.Serializable

public class GaussianDistribution
extends java.lang.Object
implements RandomDistribution

This class implements a Gaussian distribution.

See Also:

Serialized Form

Constructor Summary

GaussianDistribution()
Creates a new pseudo-random, Gaussian distribution with zero mean and unitary variance.

GaussianDistribution(double mean, double variance)
Creates a new pseudo-random, Gaussian distribution.

Method Summary

double	generate() Generates a pseudo-random number.
double	mean() Returns this distribution's mean value.
double	probability(double n) Returns the probability (density) of a given number.
double	variance() Returns this distribution's variance.

Methods inherited from class java.lang.Object

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

Constructor Detail

GaussianDistribution

public GaussianDistribution()

Creates a new pseudo-random, Gaussian distribution with zero mean and unitary variance.

GaussianDistribution

public GaussianDistribution(double mean,
                            double variance)

Creates a new pseudo-random, Gaussian distribution.

Parameters:

mean - The mean value of the generated numbers.

variance - The variance of the generated numbers.

Method Detail

mean

public double mean()

Returns this distribution's mean value.

Returns:

This distribution's mean value.

variance

public double variance()

Returns this distribution's variance.

Returns:

This distribution's variance.

generate

public double generate()

Description copied from interface: RandomDistribution

Generates a pseudo-random number. The numbers generated by this function are drawn according to the pseudo-random distribution described by the object that implements it.

Specified by:

generate in interface RandomDistribution

Returns:

A pseudo-random number.

probability

public double probability(double n)

Description copied from interface: RandomDistribution

Returns the probability (density) of a given number.

Specified by:

probability in interface RandomDistribution

Parameters:

n - A number.