com.rapidminer.operator.preprocessing.normalization
Class Normalization

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.preprocessing.PreprocessingOperator
          com.rapidminer.operator.preprocessing.normalization.Normalization

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ParameterHandler, LoggingHandler

public class Normalization
extends PreprocessingOperator

This operator performs a normalization. This can be done between a user defined minimum and maximum value or by a z-transformation, i.e. on mean 0 and variance 1. or by a proportional transformation as proportion of the total sum of the respective attribute.

Author:

Ingo Mierswa, Sebastian Land

Field Summary

static java.lang.String[]	NORMALIZATION_METHODS
static java.lang.String	PARAMETER_MAX The parameter name for "The maximum value after normalization"
static java.lang.String	PARAMETER_MIN The parameter name for "The minimum value after normalization"
static java.lang.String	PARAMETER_NORMALIZATION_METHOD

Fields inherited from class com.rapidminer.operator.preprocessing.PreprocessingOperator

PARAMETER_CREATE_VIEW, PARAMETER_RETURN_PREPROCESSING_MODEL

Constructor Summary

Normalization(OperatorDescription description)
Creates a new Normalization operator.

Method Summary

Model	createPreprocessingModel(ExampleSet exampleSet) Depending on the parameter value of "standardize" this method creates either a ZTransformationModel, MinMaxNormalizationModel or PercentageNormalizationModel.
java.util.List<ParameterType>	getParameterTypes() Returns a list with all parameter types of this model.

Methods inherited from class com.rapidminer.operator.preprocessing.PreprocessingOperator

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

NORMALIZATION_METHODS

public static final java.lang.String[] NORMALIZATION_METHODS

PARAMETER_NORMALIZATION_METHOD

public static final java.lang.String PARAMETER_NORMALIZATION_METHOD

See Also:

Constant Field Values

PARAMETER_MIN

public static final java.lang.String PARAMETER_MIN

The parameter name for "The minimum value after normalization"

See Also:

Constant Field Values

PARAMETER_MAX

public static final java.lang.String PARAMETER_MAX

The parameter name for "The maximum value after normalization"

See Also:

Constant Field Values

Constructor Detail

Normalization

public Normalization(OperatorDescription description)

Creates a new Normalization operator.

Method Detail

createPreprocessingModel

public Model createPreprocessingModel(ExampleSet exampleSet)
                               throws OperatorException

Depending on the parameter value of "standardize" this method creates either a ZTransformationModel, MinMaxNormalizationModel or PercentageNormalizationModel.

Specified by:

createPreprocessingModel in class PreprocessingOperator

Throws:

OperatorException

getParameterTypes

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

Returns a list with all parameter types of this model.

Specified by:

getParameterTypes in interface ParameterHandler

Overrides:

getParameterTypes in class PreprocessingOperator