jsim.variate
Class Beta

java.lang.Object
  jsim.variate.Variate
      jsim.variate.Beta

public class Beta
extends Variate

Beta random variate generation.

Constructor Summary

Beta(double alpha, double beta, int i)
Constructs a Beta random variate.

Method Summary

double	gen() Generate a random number from a Beta distribution.
java.lang.Double[]	getParameters() Get the parameters of the constuctor

Methods inherited from class jsim.variate.Variate

incStream, printName

Methods inherited from class java.lang.Object

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

Constructor Detail

Beta

public Beta(double alpha,
            double beta,
            int i)

Constructs a Beta random variate. Beta = Gamma1 / (Gamma1 + Gamma2)

Parameters:

alpha - shape parameter for Gamma1

beta - shape parameter for Gamma2

i - random number stream

Method Detail

getParameters

public java.lang.Double[] getParameters()

Get the parameters of the constuctor

Overrides:

getParameters in class Variate

gen

public double gen()

Generate a random number from a Beta distribution.

Overrides:

gen in class Variate

Returns:

double random number from Beta distribution