jas.random
Class DistributionFactory

java.lang.Object
  jas.random.DistributionFactory

public class DistributionFactory
extends java.lang.Object

Constructor Summary

DistributionFactory()

Method Summary

static BetaDistribution	getBetaDistribution(double alpha, double beta) Return a Beta generator synchronized to the common seed number.
static BetaDistribution	getBetaDistribution(double alpha, double beta, int withSeed) Return a Beta generator synchronized to the common seed number.
static BinomialDistribution	getBinomialDistribution(int n, double p) Return a Binomial generator synchronized to the common seed number.
static BinomialDistribution	getBinomialDistribution(int n, double p, int withSeed) Return a Binomial generator synchronized to the common seed number.
static ExponentialDistribution	getExponentialDistribution(double lambda) Return a ExponentialDistribution generator synchronized to the common seed number.
static ExponentialDistribution	getExponentialDistribution(double lambda, int withSeed) Return a ExponentialDistribution generator synchronized to the common seed number.
static GammaDistribution	getGammaDistribution(double alpha, double lambda) Return a GammaDistribution generator synchronized to the common seed number.
static GammaDistribution	getGammaDistribution(double alpha, double lambda, int withSeed) Return a GammaDistribution generator synchronized to the common seed number.
static JavaRandom	getJavaRandom() Return a java-Random generator synchronized to the common seed number.
static cern.jet.random.engine.RandomEngine	getNewRandomEngine() Return the current raw generator.
static cern.jet.random.engine.RandomEngine	getNewRandomEngine(int withSeed) Return the current raw generator.
static NormalDistribution	getNormalDistribution(double mean, double standardDeviation) Return a NormalDistribution generator synchronized to the common seed number.
static NormalDistribution	getNormalDistribution(double mean, double standardDeviation, int withSeed) Return a NormalDistribution generator synchronized to the common seed number.
static UniformDistribution	getUniformDistribution(double min, double max) Return a uniform generator synchronized to the common seed number.
static UniformDistribution	getUniformDistribution(double min, double max, int withSeed) Return a uniform generator synchronized to the common seed number.

Methods inherited from class java.lang.Object

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

Constructor Detail

DistributionFactory

public DistributionFactory()

Method Detail

getBetaDistribution

public static BetaDistribution getBetaDistribution(double alpha,
                                                   double beta)

Return a Beta generator synchronized to the common seed number.

Returns:

An instance of BetaDistribution.

getBetaDistribution

public static BetaDistribution getBetaDistribution(double alpha,
                                                   double beta,
                                                   int withSeed)

Return a Beta generator synchronized to the common seed number.

Returns:

An instance of BetaDistribution.

getBinomialDistribution

public static BinomialDistribution getBinomialDistribution(int n,
                                                           double p)

Return a Binomial generator synchronized to the common seed number.

Returns:

An instance of BinomialDistribution.

getBinomialDistribution

public static BinomialDistribution getBinomialDistribution(int n,
                                                           double p,
                                                           int withSeed)

Return a Binomial generator synchronized to the common seed number.

Returns:

An instance of BinomialDistribution.

getExponentialDistribution

public static ExponentialDistribution getExponentialDistribution(double lambda)

Return a ExponentialDistribution generator synchronized to the common seed number.

Returns:

An instance of ExponentialDistribution.

getExponentialDistribution

public static ExponentialDistribution getExponentialDistribution(double lambda,
                                                                 int withSeed)

Return a ExponentialDistribution generator synchronized to the common seed number.

Returns:

An instance of ExponentialDistribution.

getGammaDistribution

public static GammaDistribution getGammaDistribution(double alpha,
                                                     double lambda)

Return a GammaDistribution generator synchronized to the common seed number.

Returns:

An instance of GammaDistribution.

getGammaDistribution

public static GammaDistribution getGammaDistribution(double alpha,
                                                     double lambda,
                                                     int withSeed)

Return a GammaDistribution generator synchronized to the common seed number.

Returns:

An instance of GammaDistribution.

getJavaRandom

public static JavaRandom getJavaRandom()

Return a java-Random generator synchronized to the common seed number.

Returns:

An instance of JavaRandom.

getNewRandomEngine

public static cern.jet.random.engine.RandomEngine getNewRandomEngine()

Return the current raw generator.

Returns:

the random generator for raw numbers used by each distribution.

getNewRandomEngine

public static cern.jet.random.engine.RandomEngine getNewRandomEngine(int withSeed)

Return the current raw generator.

Returns:

the random generator for raw numbers used by each distribution.

getNormalDistribution

public static NormalDistribution getNormalDistribution(double mean,
                                                       double standardDeviation)

Return a NormalDistribution generator synchronized to the common seed number.

Returns:

An instance of NormalDistribution.

getNormalDistribution

public static NormalDistribution getNormalDistribution(double mean,
                                                       double standardDeviation,
                                                       int withSeed)

Return a NormalDistribution generator synchronized to the common seed number.

Returns:

An instance of NormalDistribution.

getUniformDistribution

public static UniformDistribution getUniformDistribution(double min,
                                                         double max)

Return a uniform generator synchronized to the common seed number.

Returns:

An instance of UniformDistribution.

getUniformDistribution

public static UniformDistribution getUniformDistribution(double min,
                                                         double max,
                                                         int withSeed)

Return a uniform generator synchronized to the common seed number.

Returns:

An instance of UniformDistribution.