SSJ
V. 1.2.5.

umontreal.iro.lecuyer.randvar
Class GeometricGen

java.lang.Object
  extended by umontreal.iro.lecuyer.randvar.RandomVariateGen
      extended by umontreal.iro.lecuyer.randvar.RandomVariateGenInt
          extended by umontreal.iro.lecuyer.randvar.GeometricGen

public class GeometricGen
extends RandomVariateGenInt

This class implements a random variate generator for the geometric distribution. Its has parameter p and mass function

p(x) = p(1 - p)x for x = 0, 1, 2,...,

where 0 <= p <= 1. Random variates are generated by calling inversion on the distribution object.


Constructor Summary
GeometricGen(RandomStream s, GeometricDist dist)
          Creates a new generator for the distribution dist, using stream s.
 
Method Summary
 int nextInt()
          Generates a random number (an integer) from the discrete distribution contained in this object.
static int nextInt(RandomStream s, double p)
          Generates a new geometric random variate with parameter p = p, using stream s, by inversion.
 
Methods inherited from class umontreal.iro.lecuyer.randvar.RandomVariateGenInt
nextArrayOfInt
 
Methods inherited from class umontreal.iro.lecuyer.randvar.RandomVariateGen
getDistribution, getStream, nextArrayOfDouble, nextDouble, setStream
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

GeometricGen

public GeometricGen(RandomStream s,
                    GeometricDist dist)
Creates a new generator for the distribution dist, using stream s.

Method Detail

nextInt

public int nextInt()
Description copied from class: RandomVariateGenInt
Generates a random number (an integer) from the discrete 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:
nextInt in class RandomVariateGenInt
Returns:
the generated value

nextInt

public static int nextInt(RandomStream s,
                          double p)
Generates a new geometric random variate with parameter p = p, using stream s, by inversion.


SSJ
V. 1.2.5.

To submit a bug or ask questions, send an e-mail to Pierre L'Ecuyer.