util.math.distributions

Class NormalDistribution

java.lang.Object

util.math.distributions.MathDistribution

util.math.distributions.NormalDistribution

public class NormalDistribution
extends MathDistribution

The normal distribution.

Author:

S.A.M. Janssen

Field Summary

Fields

Modifier and Type	Field and Description
private double	mean The mean.
private double	standardDeviation The standard deviation.

Fields inherited from class util.math.distributions.MathDistribution

random

Constructor Summary

Constructors

Constructor and Description
NormalDistribution(double mean, double standardDeviation) Creates a normal distribution with a mean and a standard deviation.
NormalDistribution(double mean, double standardDeviation, RandomPlus random) Creates a normal distribution with a mean and a standard deviation.

Method Summary

Modifier and Type	Method and Description
double	getValue() Draws a number from the random distribution.

Methods inherited from class java.lang.Object

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

Field Detail

mean

private double mean

The mean.

standardDeviation

private double standardDeviation

The standard deviation.

Constructor Detail

NormalDistribution

public NormalDistribution(double mean,
                          double standardDeviation)

Creates a normal distribution with a mean and a standard deviation.

Parameters:

mean - The mean.

standardDeviation - The standard deviation.

NormalDistribution

public NormalDistribution(double mean,
                          double standardDeviation,
                          RandomPlus random)

Creates a normal distribution with a mean and a standard deviation.

Parameters:

mean - The mean.

standardDeviation - The standard deviation.

random - The random generator.

Method Detail

getValue

public double getValue()

Description copied from class: MathDistribution

Draws a number from the random distribution.

Specified by:

getValue in class MathDistribution

Returns:

The random number.