net.sf.doodleproject.numerics4j.random
Class BinomialRandomVariable

java.lang.Object
  net.sf.doodleproject.numerics4j.random.AbstractDiscreteRandomVariable
      net.sf.doodleproject.numerics4j.random.BinomialRandomVariable

All Implemented Interfaces:

DiscreteRandomVariable

public class BinomialRandomVariable
extends AbstractDiscreteRandomVariable

A random variable generator for the Binomial distribution.

References:

1. Wikipedia contributors, "Binomial Distribution," Wikipedia, The Free Encyclopedia, http://en.wikipedia.org/wiki/Binomial_distribution

Since:

1.3

Version:

$Revision: 1.2 $ $Date: 2007/11/18 23:51:19 $

Constructor Summary

BinomialRandomVariable()
Default constructor.

BinomialRandomVariable(int n, double p)
Create a random variable with the given number of trials and probability of success.

BinomialRandomVariable(int n, double p, RNG source)
Create a random variable with the given parameters.

Method Summary

int	nextRandomVariable() Access the next random variable from this generator.
static int	nextRandomVariable(int n, double p, RNG source) Access the next random variable using the given generator.

Methods inherited from class net.sf.doodleproject.numerics4j.random.AbstractDiscreteRandomVariable

getSource, nextRandomNumber

Methods inherited from class java.lang.Object

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

Constructor Detail

BinomialRandomVariable

public BinomialRandomVariable()

Default constructor. Number of trials is set to one and probability of success is set to 0.5.

BinomialRandomVariable

public BinomialRandomVariable(int n,
                              double p)

Create a random variable with the given number of trials and probability of success.

Parameters:

n - the number of trials.

p - the probability of success.

BinomialRandomVariable

public BinomialRandomVariable(int n,
                              double p,
                              RNG source)

Create a random variable with the given parameters.

Parameters:

n - the number of trials.

p - the probability of success.

source - the source generator.

Method Detail

nextRandomVariable

public static int nextRandomVariable(int n,
                                     double p,
                                     RNG source)

Access the next random variable using the given generator.

Parameters:

n - the number of trials.

p - the probability of success.

source - the source generator.

Returns:

the next random variable.

nextRandomVariable

public int nextRandomVariable()

Access the next random variable from this generator.

Returns:

the next random variable.