numRecipes

Class RandomGenerator

java.lang.Object

numRecipes.RandomGenerator

public class RandomGenerator
extends java.lang.Object

Utilities for Random generator in Numerical Calculation. Some of them are based on the Numerical Recipes Library

Field Summary

Fields

Modifier and Type	Field and Description
static double	alogMu
static double	expMu
static double	GammaFactor
static double	muOld
static double	sqMu

Constructor Summary

Constructors

Constructor and Description
RandomGenerator() default constructor : using the current time as a seed.
RandomGenerator(long seed) constructor with a given seed.

Method Summary

Methods

Modifier and Type	Method and Description
double	GetGaussianDouble(double mu, double sigma)
long	GetPoissonian(double mu)
double	GetRandomDouble()

Methods inherited from class java.lang.Object

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

Field Detail

muOld

public static double muOld

expMu

public static double expMu

alogMu

public static double alogMu

sqMu

public static double sqMu

GammaFactor

public static double GammaFactor

Constructor Detail

RandomGenerator

public RandomGenerator()

default constructor : using the current time as a seed.

RandomGenerator

public RandomGenerator(long seed)

constructor with a given seed.

Method Detail

GetRandomDouble

public double GetRandomDouble()

GetGaussianDouble

public double GetGaussianDouble(double mu,
                       double sigma)

GetPoissonian

public long GetPoissonian(double mu)