Package jdistlib

Class Zipf

java.lang.Object

jdistlib.generic.GenericDistribution

jdistlib.Zipf

public class Zipf
extends GenericDistribution

Zipf distribution Parts taken from VGAM

Field Summary

Fields

Modifier and Type	Field	Description
protected int	N
protected double	s

Fields inherited from class jdistlib.generic.GenericDistribution

random

Constructor Summary

Constructors

Constructor	Description
Zipf(int N, double s)

Method Summary

Modifier and Type	Method	Description
double	cumulative(double p, boolean lower_tail, boolean log_p)
static final double	cumulative(int x, int N, double s, boolean lower_tail, boolean log_p)
double	density(double x, boolean log)
static final double	density(int x, int N, double s, boolean give_log)
double	quantile(double q, boolean lower_tail, boolean log_p)
static final double	quantile(double p, int N, double s, boolean lower_tail, boolean log_p)
double	random()
static final double	random(int N, double s, RandomEngine random)
static final double[]	random(int n, int N, double s, RandomEngine random)

Methods inherited from class jdistlib.generic.GenericDistribution

copyBackward, cumulative, cumulative, cumulative, cumulative_hazard, cumulative_hazard, cumulativeInto, density, density, densityInto, getRandomEngine, hazard, hazard, inverse_survival, inverse_survival, quantile, quantile, quantile, quantileInto, random, random, randomInto, setRandomEngine, survival, survival, survival

Methods inherited from class java.lang.Object

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

Field Details

N

protected int N

s

protected double s

Constructor Details

Zipf

public Zipf(int N,
 double s)

Method Details

density

public static final double density(int x,
 int N,
 double s,
 boolean give_log)

cumulative

public static final double cumulative(int x,
 int N,
 double s,
 boolean lower_tail,
 boolean log_p)

quantile

public static final double quantile(double p,
 int N,
 double s,
 boolean lower_tail,
 boolean log_p)

random

public static final double random(int N,
 double s,
 RandomEngine random)

random

public static final double[] random(int n,
 int N,
 double s,
 RandomEngine random)

density

public double density(double x,
 boolean log)

Specified by:

density in class GenericDistribution

cumulative

public double cumulative(double p,
 boolean lower_tail,
 boolean log_p)

Specified by:

cumulative in class GenericDistribution

quantile

public double quantile(double q,
 boolean lower_tail,
 boolean log_p)

Specified by:

quantile in class GenericDistribution

random

public double random()

Specified by:

random in class GenericDistribution