Class DataPoints

java.lang.Object
  DataPoints

public class DataPoints
extends java.lang.Object

class holds the input DataPoints classes that are to be classified as well as the classification algorithms needed to compute the decision regions

Method Summary

void	addPoint(MyPoint p) add a point to the data set that is determined by the index (setNum)
void	clearAllSets() clear out all point form the data sets
static java.awt.Point	convertMyPoint(MyPoint dpoint, int panelWidth, int panelHeight, DisplayScale scale) Converts an instance of MyPoint to an instance of Point
static java.util.Vector<java.awt.Point>	convertMyPoints(java.util.Vector<MyPoint> dset, int panelWidth, int panelHeight, DisplayScale scale) Converts a Vector of MyPoints to a Vector of points that correspond to Java coordinates.
static MyPoint	convertPoint(java.awt.Point jpoint, int panelWidth, int panelHeight, DisplayScale scale) Converts an instance of Point to an instance of MyPoint containing the cartesian x-y values
static java.util.Vector<MyPoint>	convertPoints(java.util.Vector<java.awt.Point> jset, int panelWidth, int panelHeight, DisplayScale scale) Converts a vector of Points to a vector of MyPoints containing the cartesian x-y values
void	drawGaussian(double meanx, double meany, DisplayScale scale) Draws Gaussian distribution by calling setGaussian()
boolean	initialize() initializes dset1-dset4
boolean	isDataValid() method returns true if valid data is present else it returns false
void	setColors(java.awt.Color color_dset1, java.awt.Color color_dset2, java.awt.Color color_dset3, java.awt.Color color_dset4) sets the gaussian values
void	setDrawGaussValues(int points, double cov11, double cov12, double cov21, double cov22) sets the gaussian values
void	setFourEllipses(DisplayScale scale) create a set of point that correspond to four ellipses to be displayed on the input canvas
void	setFourGaussian(DisplayScale scale) create a set of point that correspond to four gaussians to be displayed on the input canvas method: setFourGaussian
void	setGaussian(int points, double meanx, double meany, double c11, double c12, double c21, double c22, DisplayScale scale) creates a set of point that correspond to a gaussians distribution
void	setLorentzSignal(DisplayScale scale) Draws a Lorentz generated signal.
void	setOverGaussian(DisplayScale scale) create a set of point that correspond to two overlapped gaussians to be displayed on the input canvas
void	setRandomSignal(DisplayScale scale) Draws a randomly generated signal.
void	setRotatedEllipses(DisplayScale scale) create a set of point that correspond to two rotated ellipses to be displayed on the input canvas
void	setToroidal(DisplayScale scale) create a set of point that correspond a toroidal to be displayed on the input canvas
void	setTwoEllipses(DisplayScale scale) create a set of point that correspond to two ellipses to be displayed on the input canvas
void	setTwoGaussian(DisplayScale scale) create a set of point that correspond to two gaussians to be displayed on the input canvas
void	setYinYang(DisplayScale scale) create a set of point that correspond a yin and yang symbol to be displayed on the input canvas

Methods inherited from class java.lang.Object

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

Method Detail

initialize

public boolean initialize()

initializes dset1-dset4

Returns:

true

isDataValid

public boolean isDataValid()

method returns true if valid data is present else it returns false

Returns:

true if data is valid

clearAllSets

public void clearAllSets()

clear out all point form the data sets

addPoint

public void addPoint(MyPoint p)

add a point to the data set that is determined by the index (setNum)

Parameters:

p - point to be added to the input data class

drawGaussian

public void drawGaussian(double meanx,
                         double meany,
                         DisplayScale scale)

Draws Gaussian distribution by calling setGaussian()

Parameters:

meanx - double x value of mean point

meany - double y value of mean point

scale - DisplayScale variable used for displaying

setGaussian

public void setGaussian(int points,
                        double meanx,
                        double meany,
                        double c11,
                        double c12,
                        double c21,
                        double c22,
                        DisplayScale scale)

creates a set of point that correspond to a gaussians distribution

Parameters:

points - max points in the distribution

meanx - mean (x) of the distribution

meany - mean (y) of the distribution

c11 - covariance matrix element c11

c12 - covariance matrix element c12

c21 - covariance matrix element c21

c22 - covariance matrix element c22

scale - DisplayScale variable

setTwoGaussian

public void setTwoGaussian(DisplayScale scale)

create a set of point that correspond to two gaussians to be displayed on the input canvas

Parameters:

scale - DisplayScale variable used for displaying

setFourGaussian

public void setFourGaussian(DisplayScale scale)

create a set of point that correspond to four gaussians to be displayed on the input canvas method: setFourGaussian

Parameters:

scale - DisplayScale variable used for displaying

setOverGaussian

public void setOverGaussian(DisplayScale scale)

create a set of point that correspond to two overlapped gaussians to be displayed on the input canvas

Parameters:

scale - DisplayScale variable used for displaying

setTwoEllipses

public void setTwoEllipses(DisplayScale scale)

create a set of point that correspond to two ellipses to be displayed on the input canvas

Parameters:

scale - DisplayScale variable used for displaying

setRotatedEllipses

public void setRotatedEllipses(DisplayScale scale)

create a set of point that correspond to two rotated ellipses to be displayed on the input canvas

Parameters:

scale - DisplayScale variable used for displaying

setFourEllipses

public void setFourEllipses(DisplayScale scale)

create a set of point that correspond to four ellipses to be displayed on the input canvas

Parameters:

scale - DisplayScale variable used for displaying

setToroidal

public void setToroidal(DisplayScale scale)

create a set of point that correspond a toroidal to be displayed on the input canvas

Parameters:

scale - DisplayScale variable used for displaying

setYinYang

public void setYinYang(DisplayScale scale)

create a set of point that correspond a yin and yang symbol to be displayed on the input canvas

Parameters:

scale - DisplayScale variable used for viewing

setRandomSignal

public void setRandomSignal(DisplayScale scale)

Draws a randomly generated signal. It follows a sine curve with gaussian noise

Parameters:

scale - DisplayScale variable used for viewing

setLorentzSignal

public void setLorentzSignal(DisplayScale scale)

Draws a Lorentz generated signal. It follows a sine curve with gaussian noise

Parameters:

scale - DisplayScale variable used for viewing

convertPoint

public static MyPoint convertPoint(java.awt.Point jpoint,
                                   int panelWidth,
                                   int panelHeight,
                                   DisplayScale scale)

Converts an instance of Point to an instance of MyPoint containing the cartesian x-y values

Parameters:

jpoint - Point variable used to set MyPoint

panelWidth - Width of viewing panel

panelHeight - Height of viewing panel

scale - DisplayScale variable used for viewing

Returns:

MyPoint convertion

convertPoints

public static java.util.Vector<MyPoint> convertPoints(java.util.Vector<java.awt.Point> jset,
                                                      int panelWidth,
                                                      int panelHeight,
                                                      DisplayScale scale)

Converts a vector of Points to a vector of MyPoints containing the cartesian x-y values

Parameters:

jset - Vector of points to be converted

panelWidth - Width of viewing panel

panelHeight - Height of viewing panel

Returns:

Vector of MyPoints converted

convertMyPoint

public static java.awt.Point convertMyPoint(MyPoint dpoint,
                                            int panelWidth,
                                            int panelHeight,
                                            DisplayScale scale)

Converts an instance of MyPoint to an instance of Point

Parameters:

dpoint - MyPoint to be converted

panelWidth - Width of panel for viewing

panelHeight - Width of panel for viewing

Returns:

Point type converted from MyPoint type

convertMyPoints

public static java.util.Vector<java.awt.Point> convertMyPoints(java.util.Vector<MyPoint> dset,
                                                               int panelWidth,
                                                               int panelHeight,
                                                               DisplayScale scale)

Converts a Vector of MyPoints to a Vector of points that correspond to Java coordinates.

Parameters:

dset - Vector of MyPoints to be converted to Vector of Points

panelWidth - Width of panel for viewing

panelHeight - Height of panel for viewing

Returns:

Vector of Points converted from MyPoints

setDrawGaussValues

public void setDrawGaussValues(int points,
                               double cov11,
                               double cov12,
                               double cov21,
                               double cov22)

sets the gaussian values

Parameters:

points - number of points

cov11 - double value of covariance11

cov12 - double value of covariance12

cov21 - double value of covariance21

cov22 - double value of covariance22

setColors

public void setColors(java.awt.Color color_dset1,
                      java.awt.Color color_dset2,
                      java.awt.Color color_dset3,
                      java.awt.Color color_dset4)

sets the gaussian values

Parameters:

color_dset1 - color for data set 1

color_dset2 - color for data set 2

color_dset3 - color for data set 3

color_dset4 - color for data set 4