psimjava
Class Erand

java.lang.Object
  psimjava.Erand

public class Erand
extends java.lang.Object

Exponential Randum Number Generator

Object-oriented simulation package, process interaction approach.

(C) J. M. Garrido. June 2000, 2003, 2004, 2007 Random number generator, Exponential distribution

Constructor Summary

Erand(double emean)
Constructor for initializing the exponential random number generator.

Erand(double emean, long eseed)
Constructor for initializing the exponential random number generator.

Method Summary

double

fdraw() This function generates a random number using the exponential distribution with the mean value given in the constructor.

Methods inherited from class java.lang.Object

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

Constructor Detail

Erand

public Erand(double emean,
             long eseed)

Constructor for initializing the exponential random number generator.

Parameters:

emean - double, the mean value of the distribution

eseed - long, the seed value for selecting a random stream.

Erand

public Erand(double emean)

Constructor for initializing the exponential random number generator.

Parameters:

emean - double, the mean value of the distribution

Method Detail

fdraw

public double fdraw()

This function generates a random number using the exponential distribution with the mean value given in the constructor.

Returns:

double, a random number.