gridsim.util
Class HyperExponential

Object
  Variate
      HyperExponential

public class HyperExponential
extends Variate

Generate a hyperexponentially distributed random number mean mu and standard deviation sigma (sigma > mu) using Morse's two-stage hyperexponential distribution.
NOTE: This class is taken from JSim.

Since:

GridSim Toolkit 4.1

Constructor Summary

HyperExponential(double mu, double sigma, int i)
Constructs a Hyper-Geometric random variable.

Method Summary

double	gen() Generate a hyperexponentially distirbuted random number.
Double[]	getParameters() Get the parameters of the constructor

Methods inherited from class Variate

incStream

Methods inherited from class Object

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

Constructor Detail

HyperExponential

public HyperExponential(double mu,
                        double sigma,
                        int i)

Constructs a Hyper-Geometric random variable.

Parameters:

mu - mean

sigma - standard deviation

i - stream

Method Detail

getParameters

public Double[] getParameters()

Get the parameters of the constructor

Overrides:

getParameters in class Variate

Returns:

the parameters

gen

public double gen()

Generate a hyperexponentially distirbuted random number.

Overrides:

gen in class Variate

Returns:

double random number from HyperExponential distribution