Package jdistlib

Class InvNormal

java.lang.Object

jdistlib.generic.GenericDistribution

jdistlib.InvNormal

public class InvNormal
extends GenericDistribution

Inverse normal (or Wald) distribution. Taken from package gamlss.dist. Parameterization: mu and sigma. Note: lambda = 1/sigma^2.

Field Summary

Fields

Modifier and Type	Field	Description
protected double	mu
protected double	sigma

Fields inherited from class jdistlib.generic.GenericDistribution

random

Constructor Summary

Constructors

Constructor	Description
InvNormal(double mu, double sigma)

Method Summary

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

mu

protected double mu

sigma

protected double sigma

Constructor Details

InvNormal

public InvNormal(double mu,
 double sigma)

Method Details

density

public static final double density(double x,
 double mu,
 double sigma,
 boolean give_log)

cumulative

public static final double cumulative(double q,
 double mu,
 double sigma,
 boolean lower_tail,
 boolean log_p)

quantile

public static final double quantile(double p,
 double mu,
 double sigma,
 boolean lower_tail,
 boolean log_p)

random

public static final double random(double mu,
 double sigma,
 RandomEngine random)

random

public static final double[] random(int n,
 double mu,
 double sigma,
 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