jdistlib

Class Zipf

java.lang.Object

jdistlib.generic.GenericDistribution

jdistlib.Zipf

public class Zipf
extends GenericDistribution

Zipf distribution Parts taken from VGAM

Constructor Summary

Constructors

Constructor and Description
Zipf(int N, double s)

Method Summary

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

Methods inherited from class jdistlib.generic.GenericDistribution

cumulative_hazard, cumulative_hazard, cumulative, cumulative, cumulative, density, density, getRandomEngine, hazard, hazard, inverse_survival, inverse_survival, quantile, quantile, quantile, random, random, setRandomEngine, survival, survival, survival

Methods inherited from class java.lang.Object

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

Constructor Detail

Zipf

public Zipf(int N,
            double s)

Method Detail

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