com.rapidminer.operator.preprocessing.sampling
Class AbstractSamplingOperator

java.lang.Object
  com.rapidminer.tools.AbstractObservable<Operator>
      com.rapidminer.operator.Operator
          com.rapidminer.operator.AbstractExampleSetProcessing
              com.rapidminer.operator.preprocessing.AbstractDataProcessing
                  com.rapidminer.operator.preprocessing.sampling.AbstractSamplingOperator

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ResourceConsumer, ParameterHandler, LoggingHandler, Observable<Operator>

Direct Known Subclasses:

AbsoluteSampling, AbstractBootstrapping, AbstractStratifiedSampling, BootstrappingOperator, KennardStoneSampling, ModelBasedSampling, SamplingOperator, StratifiedSamplingOperator

public abstract class AbstractSamplingOperator
extends AbstractDataProcessing

Abstract superclass of operators leaving the attribute set and data unchanged but reducing the number of examples.

Author:

Simon Fischer

Constructor Summary

AbstractSamplingOperator(OperatorDescription description)

Method Summary

protected abstract MDInteger	getSampledSize(ExampleSetMetaData emd) subclasses must implement this method for exact size meta data.
protected MetaData	modifyMetaData(ExampleSetMetaData metaData) Subclasses might override this method to define the meta data transformation performed by this operator.
boolean	writesIntoExistingData() This method indicates whether the operator will perform a write operation on a cell in an existing column of the example set's ExampleTable.

Methods inherited from class com.rapidminer.operator.AbstractExampleSetProcessing

apply, doWork, getExampleSetInputPort, getExampleSetOutputPort, getInputPort, getRequiredMetaData, shouldAutoConnect

Methods inherited from class com.rapidminer.operator.Operator

acceptsInput, addError, addError, addValue, addWarning, apply, apply, assumePreconditionsSatisfied, checkAll, checkAllExcludingMetaData, checkDeprecations, checkForStop, checkIO, checkProperties, clear, clearErrorList, cloneOperator, collectErrors, createExperimentTree, createExperimentTree, createFromXML, createFromXML, createFromXML, createMarkedExperimentTree, createMarkedProcessTree, createProcessTree, createProcessTree, disconnectPorts, execute, fireUpdate, freeMemory, getAddOnlyAdditionalOutput, getApplyCount, getCompatibilityLevel, getDeliveredOutputClasses, getDeprecationInfo, getDesiredInputClasses, getDOMRepresentation, getEncoding, getErrorList, getExecutionUnit, getExperiment, getIncompatibleVersionChanges, getInput, getInput, getInput, getInputClasses, getInputDescription, getInputPorts, getIODescription, getLog, getLogger, getName, getNumberOfBreakpoints, getOperatorClassName, getOperatorDescription, getOutputClasses, getOutputPorts, getParameter, getParameterAsBoolean, getParameterAsChar, getParameterAsColor, getParameterAsDouble, getParameterAsFile, getParameterAsFile, getParameterAsInputStream, getParameterAsInt, getParameterAsMatrix, getParameterAsRepositoryLocation, getParameterAsString, getParameterHandler, getParameterList, getParameters, getParameterTupel, getParameterType, getParameterTypes, getParent, getPortOwner, getProcess, getResourceConsumptionEstimator, getRoot, getStartTime, getTransformer, getUserDescription, getValue, getValues, getXML, getXML, getXML, hasBreakpoint, hasBreakpoint, hasInput, inApplyLoop, isDebugMode, isDirty, isEnabled, isExpanded, isParallel, isParameterSet, isRunning, log, log, logError, logNote, logWarning, lookupOperator, makeDirty, makeDirtyOnUpdate, notifyRenaming, performAdditionalChecks, preAutoWire, processFinished, processStarts, producesOutput, propagateDirtyness, register, registerOperator, remove, removeAndKeepConnections, rename, resume, setBreakpoint, setCompatibilityLevel, setEnabled, setEnclosingProcess, setExpanded, setInput, setListParameter, setPairParameter, setParameter, setParameters, setUserDescription, shouldAutoConnect, shouldStopStandaloneExecution, toString, transformMetaData, unregisterOperator, updateExecutionOrder, walk, writeXML, writeXML

Methods inherited from class com.rapidminer.tools.AbstractObservable

addObserver, addObserverAsFirst, fireUpdate, removeObserver

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractSamplingOperator

public AbstractSamplingOperator(OperatorDescription description)

Method Detail

modifyMetaData

protected MetaData modifyMetaData(ExampleSetMetaData metaData)

Description copied from class: AbstractExampleSetProcessing

Subclasses might override this method to define the meta data transformation performed by this operator.

Overrides:

modifyMetaData in class AbstractExampleSetProcessing

getSampledSize

protected abstract MDInteger getSampledSize(ExampleSetMetaData emd)
                                     throws UndefinedParameterError

subclasses must implement this method for exact size meta data.

Throws:

UndefinedParameterError

writesIntoExistingData

public boolean writesIntoExistingData()

Description copied from class: AbstractExampleSetProcessing

This method indicates whether the operator will perform a write operation on a cell in an existing column of the example set's ExampleTable. If yes, the original example will be completely copied in memory if the original port is used. Note: Subclasses must implement this method. The safe implementation would be to return true, however, for backwards compatibility, the default implementation returns false.

Overrides:

writesIntoExistingData in class AbstractExampleSetProcessing