Package jdistlib

Class Gamma

java.lang.Object

jdistlib.generic.GenericDistribution

jdistlib.Gamma

All Implemented Interfaces:

TransformDistribution, SupportedDistribution

public class Gamma
extends GenericDistribution
implements SupportedDistribution, TransformDistribution

Field Summary

Fields

Modifier and Type	Field	Description
protected double	scale
protected double	shape

Fields inherited from class jdistlib.generic.GenericDistribution

random

Constructor Summary

Constructors

Constructor	Description
Gamma(double shape, double scale)

Method Summary

Modifier and Type	Method	Description
double	cumulative(double p, boolean lower_tail, boolean log_p)
static final double	cumulative(double x, double alph, double scale, boolean lower_tail, boolean log_p)
double	density(double x, boolean log)
static final double	density(double x, double shape, double scale, boolean give_log)
double	getLowerBound()
double	getUpperBound()
Complex	logCharacteristic(double frequency)
Complex	logMomentGenerating(double argument)
TransformDomain	momentGeneratingDomain()
double	quantile(double q, boolean lower_tail, boolean log_p)
static final double	quantile(double p, double alpha, double scale, boolean lower_tail, boolean log_p)
double	random()
static final double	random(double a, double scale, RandomEngine random)
static final double[]	random(int n, double a, double scale, 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

shape

protected double shape

scale

protected double scale

Constructor Details

Gamma

public Gamma(double shape,
 double scale)

Method Details

density

public static final double density(double x,
 double shape,
 double scale,
 boolean give_log)

cumulative

public static final double cumulative(double x,
 double alph,
 double scale,
 boolean lower_tail,
 boolean log_p)

quantile

public static final double quantile(double p,
 double alpha,
 double scale,
 boolean lower_tail,
 boolean log_p)

random

public static final double random(double a,
 double scale,
 RandomEngine random)

random

public static final double[] random(int n,
 double a,
 double scale,
 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

logCharacteristic

public Complex logCharacteristic(double frequency)

Specified by:

logCharacteristic in interface TransformDistribution

logMomentGenerating

public Complex logMomentGenerating(double argument)

Specified by:

logMomentGenerating in interface TransformDistribution

momentGeneratingDomain

public TransformDomain momentGeneratingDomain()

Specified by:

momentGeneratingDomain in interface TransformDistribution

getLowerBound

public double getLowerBound()

Specified by:

getLowerBound in interface SupportedDistribution

getUpperBound

public double getUpperBound()

Specified by:

getUpperBound in interface SupportedDistribution