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

java.lang.Object
  edu.udo.cs.yale.operator.Operator
      edu.udo.cs.yale.operator.generator.ExampleSetGenerator

All Implemented Interfaces:

ConfigurationListener

public class ExampleSetGenerator
extends Operator

Generates a random example set for testing purposes. Uses a subclass of TargetFunction to create the examples from the attribute values. Possible target functions are: random, sum (of all attributes), polynomial (of the first three attributes, degree 3), non linear, sinus, sinus frequency (like sinus, but with frequencies in the argument), random classification, sum classification (like sum, but positive for positive sum and negative for negative sum), interaction classification (positive for negative x or positive y and negative z), sinus classification (positive for positive sinus values).

Version:

$Id: ExampleSetGenerator.java,v 1.28 2006/04/14 07:47:17 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

private static java.lang.Class[]	INPUT_CLASSES
private static java.lang.Class[]	KNOWN_FUNCTION_IMPLEMENTATIONS
private static java.lang.String[]	KNOWN_FUNCTION_NAMES
private static java.lang.Class[]	OUTPUT_CLASSES

Constructor Summary

ExampleSetGenerator(OperatorDescription description)

Method Summary

IOObject[]	apply() Implement this method in subclasses.
static TargetFunction	getFunctionForName(java.lang.String functionName)
java.lang.Class[]	getInputClasses() Returns the classes that are needed as input.
java.lang.Class[]	getOutputClasses() Returns the classes that are guaranteed to be returned by apply() as additional output.
java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.

Methods inherited from class edu.udo.cs.yale.operator.Operator

addError, addValue, addWarning, apply, checkDeprecations, checkIO, checkProperties, clearErrorList, cloneOperator, createExperimentTree, createExperimentTree, createFromXML, createMarkedExperimentTree, delete, experimentFinished, experimentStarts, getAddOnlyAdditionalOutput, getApplyCount, getDeliveredOutputClasses, getDeprecationInfo, getDesiredInputClasses, getErrorList, getExperiment, getInnerOperatorsXML, getInput, getInput, getInput, getInputDescription, getIOContainerForInApplyLoopBreakpoint, getName, getNumberOfSteps, getOperatorClassName, getOperatorDescription, getParameter, getParameterAsBoolean, getParameterAsColor, getParameterAsDouble, getParameterAsFile, getParameterAsInt, getParameterAsString, getParameterList, getParameters, getParameterType, getParent, getStartTime, getStatus, getUserDescription, getValue, getValues, getXML, hasBreakpoint, hasBreakpoint, hasInput, inApplyLoop, isEnabled, isParameterSet, logMessage, performAdditionalChecks, register, remove, rename, resume, setBreakpoint, setEnabled, setExperiment, setInput, setListParameter, setOperatorParameters, setParameter, setParameters, setParent, setUserDescription, toString, writeXML

Methods inherited from class java.lang.Object

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

Field Detail

KNOWN_FUNCTION_NAMES

private static final java.lang.String[] KNOWN_FUNCTION_NAMES

KNOWN_FUNCTION_IMPLEMENTATIONS

private static final java.lang.Class[] KNOWN_FUNCTION_IMPLEMENTATIONS

INPUT_CLASSES

private static final java.lang.Class[] INPUT_CLASSES

OUTPUT_CLASSES

private static final java.lang.Class[] OUTPUT_CLASSES

Constructor Detail

ExampleSetGenerator

public ExampleSetGenerator(OperatorDescription description)

Method Detail

apply

public IOObject[] apply()
                 throws OperatorException

Description copied from class: Operator

Implement this method in subclasses.

Specified by:

apply in class Operator

Throws:

OperatorException

getFunctionForName

public static TargetFunction getFunctionForName(java.lang.String functionName)
                                         throws java.lang.IllegalAccessException,
                                                java.lang.InstantiationException,
                                                java.lang.ClassNotFoundException

Throws:

java.lang.IllegalAccessException

java.lang.InstantiationException

java.lang.ClassNotFoundException

getInputClasses

public java.lang.Class[] getInputClasses()

Description copied from class: Operator

Returns the classes that are needed as input. May be null or an empty (no desired input). As default, all delivered input objects are consumed and must be also delivered as output in both Operator.getOutputClasses() and Operator.apply() if this is necessary. This default behavior can be changed by overriding Operator.getInputDescription(Class). Subclasses which implement this method should not make use of parameters since this method is invoked by getParameterTypes(). Therefore, parameters are not fully available at this point of time and this might lead to exceptions. Please use InputDescriptions instead.

Specified by:

getInputClasses in class Operator

getOutputClasses

public java.lang.Class[] getOutputClasses()

Description copied from class: Operator

Returns the classes that are guaranteed to be returned by apply() as additional output. Please note that input object which should not be consumed must also be defined by this method (e.g. for preprocessing operators). The default behavior for input consumation is defined by Operator.getInputDescription(Class) and can be changed by overwriting this method. Objects which are not consumed must not be defined as additional output in this method. May be null or an empy array (no additional output is produced).

Specified by:

getOutputClasses in class Operator

getParameterTypes

public java.util.List<ParameterType> getParameterTypes()

Description copied from class: Operator

Returns a list of ParameterTypes describing the parameters of this operator. The default implementation returns an empty list if no input objects can be retained and special parameters for those input objects which can be prevented from being consumed.

Overrides:

getParameterTypes in class Operator