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

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
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

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, 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