umontreal.iro.lecuyer.randvar
Class LognormalSpecialGen

java.lang.Object
  umontreal.iro.lecuyer.randvar.RandomVariateGen
      umontreal.iro.lecuyer.randvar.LognormalSpecialGen

public class LognormalSpecialGen
extends RandomVariateGen

Implements methods for generating random variates from the lognormal distribution using an arbitrary normal random variate generator. The (non-static) nextDouble method calls the nextDouble method of the normal generator and takes the exponential of the result.

Constructor Summary

LognormalSpecialGen(NormalGen g)
Create a lognormal random variate generator using the normal generator g and with the same parameters.

Method Summary

double

nextDouble() Generates a random number from the continuous distribution contained in this object.

Methods inherited from class umontreal.iro.lecuyer.randvar.RandomVariateGen

getDistribution, getStream, nextArrayOfDouble, setStream, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LognormalSpecialGen

public LognormalSpecialGen(NormalGen g)

Create a lognormal random variate generator using the normal generator g and with the same parameters.

Method Detail

nextDouble

public double nextDouble()

Description copied from class: RandomVariateGen

Generates a random number from the continuous distribution contained in this object. By default, this method uses inversion by calling the inverseF method of the distribution object. Alternative generating methods are provided in subclasses.

Overrides:

nextDouble in class RandomVariateGen

Returns:

the generated value