edu.udo.cs.yale.generator
Class ExponentialFunctionGenerator

java.lang.Object
  edu.udo.cs.yale.generator.FeatureGenerator
      edu.udo.cs.yale.generator.SingularNumericalGenerator
          edu.udo.cs.yale.generator.ExponentialFunctionGenerator

public class ExponentialFunctionGenerator
extends SingularNumericalGenerator

This class has one numerical input attribute and one output attribute. Depending on the mode specified in the constructor the result will be the exponential or the logarithm function of the input attribute.

Version:

$Id: ExponentialFunctionGenerator.java,v 2.6 2006/03/21 15:35:40 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

static int	EXP
static java.lang.String[]	FUNCTION_NAMES
static int	LOG
private int	mode

Fields inherited from class edu.udo.cs.yale.generator.FeatureGenerator

resultAttributes, SELECTION_MODE_ALL, SELECTION_MODE_RESTRICTIVE

Constructor Summary

ExponentialFunctionGenerator()

ExponentialFunctionGenerator(int mode)

Method Summary

double	calculateValue(double value) Subclasses have to implement this method to calculate the function result.
boolean	equals(java.lang.Object o) A FeatureGenerator equals another FeatureGenerator if its class is equal and its arguments are equal and its function names are equal.
java.lang.String	getFunction() Sets the function name.
FeatureGenerator	newInstance() Subclasses must implement this method so that a new instance of this generator class is returned.
void	setFunction(java.lang.String name) Sets the function name.

Methods inherited from class edu.udo.cs.yale.generator.SingularNumericalGenerator

generate, getInputAttributes, getInputCandidates, getOutputAttributes, toString

Methods inherited from class edu.udo.cs.yale.generator.FeatureGenerator

argumentsSet, checkCompatibility, createGeneratorForFunction, generateAll, getArgument, getExampleTable, getSelectionMode, selectGenerator, setArguments, setExampleTable, setSelectionMode

Methods inherited from class java.lang.Object

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

Field Detail

EXP

public static final int EXP

See Also:

Constant Field Values

LOG

public static final int LOG

See Also:

Constant Field Values

FUNCTION_NAMES

public static final java.lang.String[] FUNCTION_NAMES

mode

private int mode

Constructor Detail

ExponentialFunctionGenerator

public ExponentialFunctionGenerator(int mode)

ExponentialFunctionGenerator

public ExponentialFunctionGenerator()

Method Detail

newInstance

public FeatureGenerator newInstance()

Description copied from class: FeatureGenerator

Subclasses must implement this method so that a new instance of this generator class is returned. The arguments and the example table will not be cloned and thus be null. This kind of clone is needed as generating algorithms must be able to clone generators form their pool without changing the arguments already set for the others.

Specified by:

newInstance in class FeatureGenerator

calculateValue

public double calculateValue(double value)

Description copied from class: SingularNumericalGenerator

Subclasses have to implement this method to calculate the function result.

Specified by:

calculateValue in class SingularNumericalGenerator

setFunction

public void setFunction(java.lang.String name)

Description copied from class: FeatureGenerator

Sets the function name. This method is only useful if subclasses can generate more than one function. (like the BasicArithmeticOperationGenerator).

Specified by:

setFunction in class FeatureGenerator

getFunction

public java.lang.String getFunction()

Description copied from class: FeatureGenerator

Sets the function name. This method is only useful if subclasses can generate more than one function. (like the BasicArithmeticOperationGenerator).

Specified by:

getFunction in class FeatureGenerator

equals

public boolean equals(java.lang.Object o)

Description copied from class: FeatureGenerator

A FeatureGenerator equals another FeatureGenerator if its class is equal and its arguments are equal and its function names are equal.

Overrides:

equals in class FeatureGenerator