com.rapidminer.operator.generator
Class ExampleSetGenerator

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.io.AbstractReader<ExampleSet>
          com.rapidminer.operator.io.AbstractExampleSource
              com.rapidminer.operator.generator.ExampleSetGenerator

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ParameterHandler, LoggingHandler

public class ExampleSetGenerator
extends AbstractExampleSource

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).

Author:

Ingo Mierswa Exp $

Field Summary

static java.lang.String	PARAMETER_ATTRIBUTES_LOWER_BOUND The parameter name for "The minimum value for the attributes.
static java.lang.String	PARAMETER_ATTRIBUTES_UPPER_BOUND The parameter name for "The maximum value for the attributes.
static java.lang.String	PARAMETER_DATAMANAGEMENT The parameter name for "Determines, how the data is represented internally.
static java.lang.String	PARAMETER_LOCAL_RANDOM_SEED The parameter name for "Use the given random seed instead of global random numbers (-1: use global).
static java.lang.String	PARAMETER_NUMBER_EXAMPLES The parameter name for "The number of generated examples.
static java.lang.String	PARAMETER_NUMBER_OF_ATTRIBUTES The parameter name for "The number of attributes.
static java.lang.String	PARAMETER_TARGET_FUNCTION The parameter name for "Specifies the target function of this example set"

Constructor Summary

ExampleSetGenerator(OperatorDescription description)

Method Summary

ExampleSet	createExampleSet() Creates (or reads) the ExampleSet that will be returned by AbstractReader.apply().
static TargetFunction	getFunctionForName(java.lang.String functionName)
java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.

Methods inherited from class com.rapidminer.operator.io.AbstractExampleSource

read

Methods inherited from class com.rapidminer.operator.io.AbstractReader

apply, getInputClasses, getOutputClasses

Methods inherited from class com.rapidminer.operator.Operator

addError, addValue, addWarning, apply, checkDeprecations, checkForStop, checkIO, checkProperties, clearErrorList, cloneOperator, createExperimentTree, createExperimentTree, createFromXML, createMarkedExperimentTree, createMarkedProcessTree, createProcessTree, createProcessTree, getAddOnlyAdditionalOutput, getApplyCount, getDeliveredOutputClasses, getDeprecationInfo, getDesiredInputClasses, getEncoding, getErrorList, getExperiment, getInnerOperatorsXML, getInput, getInput, getInput, getInputDescription, getIOContainerForInApplyLoopBreakpoint, getIODescription, getLog, getName, getOperatorClassName, getOperatorDescription, getParameter, getParameterAsBoolean, getParameterAsColor, getParameterAsDouble, getParameterAsFile, getParameterAsFile, getParameterAsInputStream, getParameterAsInt, getParameterAsMatrix, getParameterAsString, getParameterList, getParameters, getParameterType, getParent, getProcess, getStartTime, getStatus, getUserDescription, getValue, getValues, getXML, hasBreakpoint, hasBreakpoint, hasInput, inApplyLoop, isDebugMode, isEnabled, isExpanded, isParallel, isParameterSet, log, logError, logNote, logWarning, performAdditionalChecks, processFinished, processStarts, register, registerOperator, remove, rename, resume, setApplyCount, setBreakpoint, setEnabled, setExpanded, setInput, setListParameter, setOperatorParameters, setParameter, setParameters, setParent, setUserDescription, toString, unregisterOperator, writeXML

Methods inherited from class java.lang.Object

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

Field Detail

PARAMETER_TARGET_FUNCTION

public static final java.lang.String PARAMETER_TARGET_FUNCTION

The parameter name for "Specifies the target function of this example set"

See Also:

Constant Field Values

PARAMETER_NUMBER_EXAMPLES

public static final java.lang.String PARAMETER_NUMBER_EXAMPLES

The parameter name for "The number of generated examples."

See Also:

Constant Field Values

PARAMETER_NUMBER_OF_ATTRIBUTES

public static final java.lang.String PARAMETER_NUMBER_OF_ATTRIBUTES

The parameter name for "The number of attributes."

See Also:

Constant Field Values

PARAMETER_ATTRIBUTES_LOWER_BOUND

public static final java.lang.String PARAMETER_ATTRIBUTES_LOWER_BOUND

The parameter name for "The minimum value for the attributes."

See Also:

Constant Field Values

PARAMETER_ATTRIBUTES_UPPER_BOUND

public static final java.lang.String PARAMETER_ATTRIBUTES_UPPER_BOUND

The parameter name for "The maximum value for the attributes."

See Also:

Constant Field Values

PARAMETER_LOCAL_RANDOM_SEED

public static final java.lang.String PARAMETER_LOCAL_RANDOM_SEED

The parameter name for "Use the given random seed instead of global random numbers (-1: use global)."

See Also:

Constant Field Values

PARAMETER_DATAMANAGEMENT

public static final java.lang.String PARAMETER_DATAMANAGEMENT

The parameter name for "Determines, how the data is represented internally."

See Also:

Constant Field Values

Constructor Detail

ExampleSetGenerator

public ExampleSetGenerator(OperatorDescription description)

Method Detail

createExampleSet

public ExampleSet createExampleSet()
                            throws OperatorException

Description copied from class: AbstractExampleSource

Creates (or reads) the ExampleSet that will be returned by AbstractReader.apply().

Specified by:

createExampleSet in class AbstractExampleSource

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

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.

Specified by:

getParameterTypes in interface ParameterHandler

Overrides:

getParameterTypes in class Operator