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

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

All Implemented Interfaces:

TargetFunction

public class GridFunction
extends java.lang.Object
implements TargetFunction

Generates a uniformly distributed grid in the given dimensions.

Version:

$Id: GridFunction.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 int[]	counter
private double	dimDistance
private double	lowerBound
private int	maxCounter
private int	numberOfAttributes
private int	numberOfExamples
private double	upperBound

Constructor Summary

GridFunction()

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.
private void	incrementCounter(int[] counter, int pos)
void	init(RandomGenerator random) Should be called before the data is created.
void	setLowerArgumentBound(double lower) Sets the lower bound for the arguments.
void	setTotalNumberOfAttributes(int number) Sets the maximal number of attributes.
void	setTotalNumberOfExamples(int number) Sets the maximal number of examples.
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

lowerBound

private double lowerBound

upperBound

private double upperBound

numberOfExamples

private int numberOfExamples

numberOfAttributes

private int numberOfAttributes

counter

private int[] counter

maxCounter

private int maxCounter

dimDistance

private double dimDistance

Constructor Detail

GridFunction

public GridFunction()

Method Detail

init

public void init(RandomGenerator random)

Description copied from interface: TargetFunction

Should be called before the data is created.

Specified by:

init in interface TargetFunction

setTotalNumberOfExamples

public void setTotalNumberOfExamples(int number)

Description copied from interface: TargetFunction

Sets the maximal number of examples. This might be used by some target functions in order to create proper arguments.

Specified by:

setTotalNumberOfExamples in interface TargetFunction

setTotalNumberOfAttributes

public void setTotalNumberOfAttributes(int number)

Description copied from interface: TargetFunction

Sets the maximal number of attributes. This might be used by some target functions in order to create proper arguments.

Specified by:

setTotalNumberOfAttributes in interface TargetFunction

setLowerArgumentBound

public void setLowerArgumentBound(double lower)

Description copied from interface: TargetFunction

Sets the lower bound for the arguments.

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

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

incrementCounter

private void incrementCounter(int[] counter,
                              int pos)