net.sf.doodleproject.numerics4j.random
Class TRandomVariable

java.lang.Object
  net.sf.doodleproject.numerics4j.random.AbstractContinuousRandomVariable
      net.sf.doodleproject.numerics4j.random.TRandomVariable

All Implemented Interfaces:

ContinuousRandomVariable

public class TRandomVariable
extends AbstractContinuousRandomVariable

A random variable generator for Student's t distribution.

References:

1. Wikipedia contributors, "Student's t-Distribution," Wikipedia, The Free Encyclopedia, http://en.wikipedia.org/wiki/T_distribution

Since:

1.3

Version:

$Revision: 1.3 $ $Date: 2007/11/18 23:51:19 $

Constructor Summary

TRandomVariable()
Default constructor.

TRandomVariable(double df)
Create a random variable with the given degrees of freedom.

TRandomVariable(double df, RNG source)
Create a random variable with the given parameters.

Method Summary

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 net.sf.doodleproject.numerics4j.random.AbstractContinuousRandomVariable

getSource, nextRandomNumber

Methods inherited from class java.lang.Object

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

Constructor Detail

TRandomVariable

public TRandomVariable()

Default constructor. Degrees of freedom is set to 1.

TRandomVariable

public TRandomVariable(double df)

Create a random variable with the given degrees of freedom.

Parameters:

df - degrees of freedom.

TRandomVariable

public TRandomVariable(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.