com.rapidminer.operator.generator
Class SpiralClusteringFunction

java.lang.Object
  com.rapidminer.operator.generator.SpiralClusteringFunction

All Implemented Interfaces:

TargetFunction

public class SpiralClusteringFunction
extends java.lang.Object
implements TargetFunction

Generates a data set for two attributes. The data build two spiral functions around the origin up to a maximal radius.

Author:

Ingo Mierswa

Nested Class Summary

Nested classes/interfaces inherited from interface com.rapidminer.operator.generator.TargetFunction

TargetFunction.FunctionException

Constructor Summary

SpiralClusteringFunction()

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) Does nothing.
void	setLowerArgumentBound(double lower) Does nothing.
void	setTotalNumberOfAttributes(int number) Does nothing.
void	setTotalNumberOfExamples(int number) Sets the total number of examples.
void	setUpperArgumentBound(double upper) Does nothing.

Methods inherited from class java.lang.Object

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

Constructor Detail

SpiralClusteringFunction

public SpiralClusteringFunction()

Method Detail

init

public void init(RandomGenerator random)

Does nothing.

Specified by:

init in interface TargetFunction

setTotalNumberOfExamples

public void setTotalNumberOfExamples(int number)

Sets the total number of examples.

Specified by:

setTotalNumberOfExamples in interface TargetFunction

setTotalNumberOfAttributes

public void setTotalNumberOfAttributes(int number)

Does nothing.

Specified by:

setTotalNumberOfAttributes in interface TargetFunction

setLowerArgumentBound

public void setLowerArgumentBound(double lower)

Does nothing.

Specified by:

setLowerArgumentBound in interface TargetFunction

setUpperArgumentBound

public void setUpperArgumentBound(double upper)

Does nothing.

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