ikr.simlib.distributions.discrete

Class ZipfMandelbrotDistribution

java.lang.Object

ikr.simlib.distributions.Distribution

ikr.simlib.distributions.discrete.DiscreteDistribution

ikr.simlib.distributions.discrete.ZipfMandelbrotDistribution

Direct Known Subclasses:

ZipfDistribution

public class ZipfMandelbrotDistribution
extends DiscreteDistribution

Zipf-Mandelbrot Distribution

 p_k=C*(v+k)ˆ(-q), k=0..N-1, q>1, v>0
 C: normalization constant, C=1/sum((v+k)ˆ(-q),k=0..N-1)
 

See Also:

"Hoermann, W. and Derflinger, G.: "Rejection-inversion to generate variates from monotone discrete distributions", ACM Transactions on Modeling and Computer Simulation (TOMACS), July 1996, Vol. 6, Iss. 3, pp. 169-184"

Field Summary

Fields

Modifier and Type	Field and Description
double	Hx0
double	IMax
double	Q
double	S
double	V

Fields inherited from class ikr.simlib.distributions.Distribution

rng

Constructor Summary

Constructors

Constructor and Description
ZipfMandelbrotDistribution(double pQ, int pN)
ZipfMandelbrotDistribution(double pQ, int pN, double pV)
ZipfMandelbrotDistribution(double pQ, int pN, double pV, RandomNumberGenerator rng)
ZipfMandelbrotDistribution(double pQ, int pN, RandomNumberGenerator rng)

Method Summary

Methods

Modifier and Type	Method and Description
int	next() Create random numbers

Methods inherited from class ikr.simlib.distributions.Distribution

getDefaultRNG, getRandomNumberGenerator, reset

Methods inherited from class java.lang.Object

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

Field Detail

Q

public final double Q

V

public final double V

IMax

public final double IMax

Hx0

public final double Hx0

S

public final double S

Constructor Detail

ZipfMandelbrotDistribution

public ZipfMandelbrotDistribution(double pQ,
                          int pN,
                          double pV,
                          RandomNumberGenerator rng)

ZipfMandelbrotDistribution

public ZipfMandelbrotDistribution(double pQ,
                          int pN,
                          double pV)

ZipfMandelbrotDistribution

public ZipfMandelbrotDistribution(double pQ,
                          int pN,
                          RandomNumberGenerator rng)

ZipfMandelbrotDistribution

public ZipfMandelbrotDistribution(double pQ,
                          int pN)

Method Detail

next

public int next()

Description copied from class: DiscreteDistribution

Create random numbers

Specified by:

next in class DiscreteDistribution