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org.mrd.jelly.distribution
Class Beta  

java.lang.Object
  org.apache.commons.jelly.TagSupport
      org.mrd.jelly.TagBase
          org.mrd.jelly.distribution.DistributionTagBase
              org.mrd.jelly.distribution.Beta

All Implemented Interfaces:

org.apache.commons.jelly.Tag

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public class Beta

extends DistributionTagBase

This is a random number generation class that produces pseudo-random doubles acording to a configured Beta Distribution. The Distribution is supported by the cern.jet.random.Beta Distribution Class. The distribution can be configured by two strategies 1.) Alpha and Beta parameters can be provided for the distribution. 2.) The mean and standard devation can be provided to configure the distribution. With this strategy alpha and beta are estimated through the method of matching moments to be alpha = mean{[mean(1-mean)/s^2] - 1} beta = (1-mean) mean{[mean(1-mean)/s^2] - 1}

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Field Summary
private  double	alpha           Holds value of property alpha.
private  double	beta           Holds value of property beta.
private  double	mean           Holds value of property mean.
private  boolean	setByMean
private  double	std           Holds value of property std.

 

Fields inherited from class org.mrd.jelly.distribution.DistributionTagBase

 

Fields inherited from class org.apache.commons.jelly.TagSupport

body, context, hasTrimmed, parent, shouldTrim

 

Constructor Summary

Beta()

 

Method Summary
void	doEndTag(org.apache.commons.jelly.XMLOutput xMLOutput)           Simply put, it is where the execution of the tag occurs.
void	doStartTag(org.apache.commons.jelly.XMLOutput xMLOutput)           Used by Ant to check if the appropriate attributes have been filled out.
double	getAlpha()           Getter for property alpha.
double	getBeta()           Getter for property beta.
double	getMean()           Getter for property mean.
double	getStd()           Getter for property std.
void	setAlpha(double alpha)           Setter for property alpha.
void	setBeta(double beta)           Setter for property beta.
void	setMean(double mean)           Setter for property mean.
void	setStd(double std)           Setter for property std.

 

Methods inherited from class org.mrd.jelly.distribution.DistributionTagBase

getEngine, getRandomElement, getVar, setEngine, setVar

 

Methods inherited from class org.mrd.jelly.TagBase

doBody, doTag

 

Methods inherited from class org.apache.commons.jelly.TagSupport

findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, findAncestorWithClass, getBody, getBodyText, getBodyText, getContext, getParent, invokeBody, isEscapeText, isTrim, setBody, setContext, setEscapeText, setParent, setTrim, trimBody

 

Methods inherited from class java.lang.Object

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

 

Field Detail

mean

private double mean

Holds value of property mean.

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std

private double std

Holds value of property std.

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alpha

private double alpha

Holds value of property alpha.

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beta

private double beta

Holds value of property beta.

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setByMean

private boolean setByMean

Constructor Detail

Beta

public Beta()

Method Detail

doStartTag

public void doStartTag(org.apache.commons.jelly.XMLOutput xMLOutput)
                throws java.lang.Exception

Used by Ant to check if the appropriate attributes have been filled out.

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doEndTag

public void doEndTag(org.apache.commons.jelly.XMLOutput xMLOutput)
              throws java.lang.Exception

Simply put, it is where the execution of the tag occurs.

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getMean

public double getMean()

Getter for property mean.

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setMean

public void setMean(double mean)

Setter for property mean.

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getStd

public double getStd()

Getter for property std.

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setStd

public void setStd(double std)

Setter for property std.

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getAlpha

public double getAlpha()

Getter for property alpha.

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setAlpha

public void setAlpha(double alpha)

Setter for property alpha.

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getBeta

public double getBeta()

Getter for property beta.

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setBeta

public void setBeta(double beta)

Setter for property beta.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> mrd >> jelly >> [ distribution overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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