jdistlib

Class InvNormal

java.lang.Object

jdistlib.generic.GenericDistribution

jdistlib.InvNormal

public class InvNormal
extends jdistlib.generic.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 and Description
protected double	mu
protected double	sigma

Fields inherited from class jdistlib.generic.GenericDistribution

random

Constructor Summary

Constructors

Constructor and Description
InvNormal(double mu, double sigma)

Method Summary

Methods

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

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

Field Detail

mu

protected double mu

sigma

protected double sigma

Constructor Detail

InvNormal

public InvNormal(double mu,
         double sigma)

Method Detail

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,
            jdistlib.rng.RandomEngine random)

random

public static final double[] random(int n,
              double mu,
              double sigma,
              jdistlib.rng.RandomEngine random)

density

public double density(double x,
             boolean log)

Specified by:

density in class jdistlib.generic.GenericDistribution

cumulative

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

Specified by:

cumulative in class jdistlib.generic.GenericDistribution

quantile

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

Specified by:

quantile in class jdistlib.generic.GenericDistribution

random

public double random()

Specified by:

random in class jdistlib.generic.GenericDistribution