pisgah
Class GammaGraphData

java.lang.Object
  |
  +--pisgah.GammaGraphData

All Implemented Interfaces:

PdfPlotable

public class GammaGraphData

extends java.lang.Object

implements PdfPlotable

Provides data for graphing the pdf of a Gamma distribution with pdf c*Math.exp((alpha-1)*Math.log(x))*Math.exp(-1*x/beta)

Field Summary

Fields inherited from interface pisgah.PdfPlotable

BOTH_TAILS, LEFT_TAIL, RIGHT_TAIL

Constructor Summary

GammaGraphData()

GammaGraphData(float aAlpha, float aBeta, float aX0, float aX1)
constructs GammaGraphData

GammaGraphData(float aAlpha, float aBeta, float aX0, float aX1, boolean aInverseSelected, int aTailChoice)
constructs GammaGraphData

Method Summary

float	getHighX() Gets the upper bound for the viewport.
java.awt.geom.Point2D.Float	getHighXInterval()
float	getHighY()
float	getLowX() Gets the lower bound for the distribution.
java.awt.geom.Point2D.Float	getLowXInterval()
float	getLowY()
java.awt.geom.Point2D.Float[]	getPlotPoints()
int	getTailChoice()
java.lang.String	getTitle()
java.lang.String	getXAxisLabel()
boolean	isInverseSelected()
void	reset()
void	setInverseSelected(boolean aInverseSelected)
void	setTailChoice(int aTailChoice)

Methods inherited from class java.lang.Object

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

Constructor Detail

GammaGraphData

public GammaGraphData()

GammaGraphData

public GammaGraphData(float aAlpha,
                      float aBeta,
                      float aX0,
                      float aX1)

constructs GammaGraphData

Parameters:

aAlpha - is alpha parameter (x^(a-1): a > 0)

aBeta - is the beta parameter ( e^(-x/b): b> 0)

aX0 - is the left end of the probability interval

aX1 - is the right end of the probability interval

GammaGraphData

public GammaGraphData(float aAlpha,
                      float aBeta,
                      float aX0,
                      float aX1,
                      boolean aInverseSelected,
                      int aTailChoice)

constructs GammaGraphData

Parameters:

aAlpha - is alpha parameter (x^(a-1): a > 0)

aBeta - is the beta parameter ( e^(-x/b): b> 0)

aX0 - is the left end of the probability interval

aX1 - is the right end of the probability interval

aInverseSelected - sets the inverse mode

aTailChoice - sets the tailChoice in inverse mode

Method Detail

getPlotPoints

public java.awt.geom.Point2D.Float[] getPlotPoints()

Specified by:

getPlotPoints in interface PdfPlotable

getLowX

public float getLowX()

Gets the lower bound for the distribution.

Returns:

The lower bound, 0.0

getHighX

public float getHighX()

Gets the upper bound for the viewport.

Returns:

The upper bound, depends on parameters.

getLowY

public float getLowY()

Specified by:

getLowY in interface PdfPlotable

getHighY

public float getHighY()

Specified by:

getHighY in interface PdfPlotable

getLowXInterval

public java.awt.geom.Point2D.Float getLowXInterval()

Specified by:

getLowXInterval in interface PdfPlotable

getHighXInterval

public java.awt.geom.Point2D.Float getHighXInterval()

Specified by:

getHighXInterval in interface PdfPlotable

getXAxisLabel

public java.lang.String getXAxisLabel()

Specified by:

getXAxisLabel in interface PdfPlotable

getTitle

public java.lang.String getTitle()

Specified by:

getTitle in interface PdfPlotable

reset

public void reset()

Specified by:

reset in interface PdfPlotable

isInverseSelected

public boolean isInverseSelected()

Specified by:

isInverseSelected in interface PdfPlotable

setInverseSelected

public void setInverseSelected(boolean aInverseSelected)

getTailChoice

public int getTailChoice()

Specified by:

getTailChoice in interface PdfPlotable

setTailChoice

public void setTailChoice(int aTailChoice)