jhplot.math.num.random

Class ChiSquaredRandomVariable

java.lang.Object

jhplot.math.num.random.AbstractContinuousRandomVariable

jhplot.math.num.random.ChiSquaredRandomVariable

All Implemented Interfaces:

ContinuousRandomVariable

public class ChiSquaredRandomVariable
extends AbstractContinuousRandomVariable

A random variable generator for the Chi-Squared distribution.

References:

1. Wikipedia contributors, "Chi-square Distribution," Wikipedia, The Free Encyclopedia, http://en.wikipedia.org/wiki/Chi-square_distribution

Since:

1.3

Constructor Summary

Constructors

Constructor and Description
ChiSquaredRandomVariable() Default constructor.
ChiSquaredRandomVariable(double df) Create a random variable with the given degrees of freedom.
ChiSquaredRandomVariable(double df, RNG source) Create a random variable with the given parameters.

Method Summary

Modifier and Type	Method and Description
double	nextRandomVariable() Access the next random variable from this generator.
static double	nextRandomVariable(double df, RNG source) Access the next random variable using the given generator.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChiSquaredRandomVariable

public ChiSquaredRandomVariable()

Default constructor. Degrees of freedom is set to 1.

ChiSquaredRandomVariable

public ChiSquaredRandomVariable(double df)

Create a random variable with the given degrees of freedom.

Parameters:

df - degrees of freedom.

ChiSquaredRandomVariable

public ChiSquaredRandomVariable(double df,
                                RNG source)

Create a random variable with the given parameters.

Parameters:

df - degrees of freedom.

source - the source generator.

Method Detail

nextRandomVariable

public static double nextRandomVariable(double df,
                                        RNG source)

Access the next random variable using the given generator.

Parameters:

df - degrees of freedom.

source - the source generator.

Returns:

the next random variable.

nextRandomVariable

public double nextRandomVariable()

Access the next random variable from this generator.

Returns:

the next random variable.