pisgah
Class StudentTGraphData

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

All Implemented Interfaces:

PdfPlotable

public class StudentTGraphData

extends java.lang.Object

implements PdfPlotable

Provides data for graphing the pdf of a Student t distribution

Field Summary

Fields inherited from interface pisgah.PdfPlotable

BOTH_TAILS, LEFT_TAIL, RIGHT_TAIL

Constructor Summary

StudentTGraphData(int n, float x1, float x2)
constructs StudentTGraphData

StudentTGraphData(int n, float x1, float x2, boolean inverseSelected, int tailChoice)
constructs StudentTGraphData

Method Summary

float	getHighX() Gets the lower bound for the viewport.
java.awt.geom.Point2D.Float	getHighXInterval() Get the x and y coordinates of the right end of the probability interval.
float	getHighY()
float	getLowX() Gets the lower bound for the viewport.
java.awt.geom.Point2D.Float	getLowXInterval() Get the x and y coordinates of the left end of the probability interval.
float	getLowY()
java.awt.geom.Point2D.Float[]	getPlotPoints() implements getPlotPoints in PdfPlotable
int	getTailChoice()
java.lang.String	getTitle()
java.lang.String	getXAxisLabel() Get the label for the horizontal axis
boolean	isInverseSelected()
void	reset()
void	setInverseSelected(boolean inverseSelected)
void	setTailChoice(int tailChoice)

Methods inherited from class java.lang.Object

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

Constructor Detail

StudentTGraphData

public StudentTGraphData(int n,
                         float x1,
                         float x2)

constructs StudentTGraphData

Parameters:

n - is the degrees of freedom

StudentTGraphData

public StudentTGraphData(int n,
                         float x1,
                         float x2,
                         boolean inverseSelected,
                         int tailChoice)

constructs StudentTGraphData

Parameters:

n - is the degrees of freedom

inverseSelected - sets the inverse mode

tailChoice - sets the tail choice in inverse mode

Method Detail

getPlotPoints

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

implements getPlotPoints in PdfPlotable

Specified by:

getPlotPoints in interface PdfPlotable

Returns:

Point2DFloat[]

getLowX

public float getLowX()

Gets the lower bound for the viewport.

Returns:

The lower bound, -5.0.

getHighX

public float getHighX()

Gets the lower bound for the viewport.

Returns:

The lower bound, 5.0.

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()

Get the x and y coordinates of the left end of the probability interval.

Specified by:

getLowXInterval in interface PdfPlotable

Returns:

The Point (x1,f(x1)).

getHighXInterval

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

Get the x and y coordinates of the right end of the probability interval.

Specified by:

getHighXInterval in interface PdfPlotable

Returns:

The Point (x2,f(x2)).

getXAxisLabel

public java.lang.String getXAxisLabel()

Get the label for the horizontal axis

Specified by:

getXAxisLabel in interface PdfPlotable

Returns:

The label ("x")

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 inverseSelected)

getTailChoice

public int getTailChoice()

Specified by:

getTailChoice in interface PdfPlotable

setTailChoice

public void setTailChoice(int tailChoice)