edu.udo.cs.yale.operator.generator
Class GaussianMixtureFunction

java.lang.Object
  edu.udo.cs.yale.operator.generator.GaussianMixtureFunction

All Implemented Interfaces:

TargetFunction

public class GaussianMixtureFunction
extends java.lang.Object
implements TargetFunction

Generates a gaussian distribution for all attributes.

Version:

$Id: GaussianMixtureFunction.java,v 1.4 2006/08/03 14:39:30 ingomierswa Exp $

Author:

Ingo Mierswa

Nested Class Summary

Nested classes/interfaces inherited from interface edu.udo.cs.yale.operator.generator.TargetFunction

TargetFunction.FunctionException

Field Summary

private static int	CLUSTER_PER_DIMENSION The number of gaussians per dimension.
private java.util.List<Cluster>	clusters The list of clusters.
private double	currentLabel The label for the last generated point.
(package private) Attribute	label The label attribute.
private double	lowerBound The lower bound for the dataset.
private int	numberOfAttributes The number of attributes.
private double	upperBound The upper bound for the dataset.

Constructor Summary

GaussianMixtureFunction()

Method Summary

double	calculate(double[] att) Calculates the target function on arguments.
double[]	createArguments(int number, RandomGenerator random) Creates and returns a number of arguments.
Attribute	getLabel() Returns the label attribute.
void	init(RandomGenerator random) Initializes some gaussian clusters.
void	setLowerArgumentBound(double lower) Since circles are used the upper and lower bounds must be the same.
void	setTotalNumberOfAttributes(int number) Sets the total number of attributes.
void	setTotalNumberOfExamples(int number) Does nothing.
void	setUpperArgumentBound(double upper) Sets the upper bound for the arguments.

Methods inherited from class java.lang.Object

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

Field Detail

CLUSTER_PER_DIMENSION

private static int CLUSTER_PER_DIMENSION

The number of gaussians per dimension.

clusters

private java.util.List<Cluster> clusters

The list of clusters.

label

Attribute label

The label attribute.

currentLabel

private double currentLabel

The label for the last generated point.

numberOfAttributes

private int numberOfAttributes

The number of attributes.

lowerBound

private double lowerBound

The lower bound for the dataset.

upperBound

private double upperBound

The upper bound for the dataset.

Constructor Detail

GaussianMixtureFunction

public GaussianMixtureFunction()

Method Detail

setLowerArgumentBound

public void setLowerArgumentBound(double lower)

Since circles are used the upper and lower bounds must be the same.

Specified by:

setLowerArgumentBound in interface TargetFunction

setUpperArgumentBound

public void setUpperArgumentBound(double upper)

Description copied from interface: TargetFunction

Sets the upper bound for the arguments.

Specified by:

setUpperArgumentBound in interface TargetFunction

init

public void init(RandomGenerator random)

Initializes some gaussian clusters.

Specified by:

init in interface TargetFunction

setTotalNumberOfExamples

public void setTotalNumberOfExamples(int number)

Does nothing.

Specified by:

setTotalNumberOfExamples in interface TargetFunction

setTotalNumberOfAttributes

public void setTotalNumberOfAttributes(int number)

Sets the total number of attributes.

Specified by:

setTotalNumberOfAttributes in interface TargetFunction

getLabel

public Attribute getLabel()

Description copied from interface: TargetFunction

Returns the label attribute.

Specified by:

getLabel in interface TargetFunction

calculate

public double calculate(double[] att)
                 throws TargetFunction.FunctionException

Description copied from interface: TargetFunction

Calculates the target function on arguments.

Specified by:

calculate in interface TargetFunction

Throws:

TargetFunction.FunctionException

createArguments

public double[] createArguments(int number,
                                RandomGenerator random)
                         throws TargetFunction.FunctionException

Description copied from interface: TargetFunction

Creates and returns a number of arguments.

Specified by:

createArguments in interface TargetFunction

Throws:

TargetFunction.FunctionException