Package jasima.core.random.continuous

Class DblDistribution

java.lang.Object

jasima.core.random.continuous.DblSequence

jasima.core.random.continuous.DblDistribution

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

DblBeta, DblChiSquared, DblExp, DblGamma, DblLogNormal, DblTDist, DblWeibull

public class DblDistribution
extends DblSequence

Returns an arbitrarily distributed random number stream. Its distribution is determined by an arbitrary RealDistribution object from the Apache Commons Math library. This class is usually not used directly but through its various sub-classes implementing particular distributions and exposing their parameters as Java Bean properties.

Author:

Torsten Hildebrandt

See Also:

Serialized Form

Field Summary

Fields inherited from class jasima.core.random.continuous.DblSequence

rndGen

Constructor Summary

Constructors

Constructor	Description
DblDistribution()
DblDistribution(String name, org.apache.commons.math3.distribution.RealDistribution distribution)
DblDistribution(Random random, String name, org.apache.commons.math3.distribution.RealDistribution distribution)
DblDistribution(Random random, org.apache.commons.math3.distribution.RealDistribution distribution)
DblDistribution(org.apache.commons.math3.distribution.RealDistribution distribution)

Method Summary

Modifier and Type	Method	Description
org.apache.commons.math3.distribution.RealDistribution	getDistribution()
double	getNumericalMean()	Returns the arithmetic mean of the values returned by DblSequence.nextDbl().
Pair<Double,Double>	getValueRange()	This method computes the minimum and maximum support values (range of possible values) of this stream.
double	nextDbl()	Returns the next number in this number stream.
protected void	setDistribution(org.apache.commons.math3.distribution.RealDistribution distribution)	Sets the continuous distribution to use.
String	toString()

Methods inherited from class jasima.core.random.continuous.DblSequence

clone, createStreamDefFromStream, getName, getRndGen, init, max, min, setName, setRndGen

Methods inherited from class java.lang.Object

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

Constructor Detail

DblDistribution

public DblDistribution()

DblDistribution

public DblDistribution(org.apache.commons.math3.distribution.RealDistribution distribution)

DblDistribution

public DblDistribution(Random random,
                       org.apache.commons.math3.distribution.RealDistribution distribution)

DblDistribution

public DblDistribution(String name,
                       org.apache.commons.math3.distribution.RealDistribution distribution)

DblDistribution

public DblDistribution(Random random,
                       String name,
                       org.apache.commons.math3.distribution.RealDistribution distribution)

Method Detail

getDistribution

public org.apache.commons.math3.distribution.RealDistribution getDistribution()

setDistribution

protected void setDistribution(org.apache.commons.math3.distribution.RealDistribution distribution)

Sets the continuous distribution to use.

nextDbl

public double nextDbl()

Description copied from class: DblSequence

Returns the next number in this number stream.

Specified by:

nextDbl in class DblSequence

getNumericalMean

public double getNumericalMean()

Description copied from class: DblSequence

Returns the arithmetic mean of the values returned by DblSequence.nextDbl().

Overrides:

getNumericalMean in class DblSequence

getValueRange

public Pair<Double,Double> getValueRange()

Description copied from class: DblSequence

This method computes the minimum and maximum support values (range of possible values) of this stream.

Overrides:

getValueRange in class DblSequence

Returns:

A Pair containing the minimum and maximum support values.

toString

public String toString()

Overrides:

toString in class Object