com.rapidminer.operator.preprocessing.filter
Class MissingValueReplenishment

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.AbstractExampleSetProcessing
          com.rapidminer.operator.preprocessing.AbstractDataProcessing
              com.rapidminer.operator.preprocessing.filter.ValueReplenishment
                  com.rapidminer.operator.preprocessing.filter.MissingValueReplenishment

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ParameterHandler, LoggingHandler

public class MissingValueReplenishment
extends ValueReplenishment

Replaces missing values in examples. If a value is missing, it is replaced by one of the functions "minimum", "maximum", "average", and "none", which is applied to the non missing attribute values of the example set. "none" means, that the value is not replaced. The function can be selected using the parameter list columns. If an attribute's name appears in this list as a key, the value is used as the function name. If the attribute's name is not in the list, the function specified by the default parameter is used. For nominal attributes the mode is used for the average, i.e. the nominal value which occurs most often in the data. For nominal attributes and replacement type zero the first nominal value defined for this attribute is used. The replenishment "value" indicates that the user defined parameter should be used for the replacement.

Author:

Ingo Mierswa, Simon Fischer ingomierswa Exp $

Field Summary

Fields inherited from class com.rapidminer.operator.preprocessing.filter.ValueReplenishment

PARAMETER_COLUMNS, PARAMETER_DEFAULT, PARAMETER_REPLENISHMENT_VALUE

Constructor Summary

MissingValueReplenishment(OperatorDescription description)

Method Summary

int	getDefaultColumnFunction() Returns the index of the replenishment function which will be used for attributes listed in the parameter list "columns".
int	getDefaultFunction() Returns the index of the replenishment function which will be used for attributes not listed in the parameter list "columns".
java.lang.String[]	getFunctionNames() Returns an array of all replenishment functions.
double	getReplenishmentValue(int functionIndex, ExampleSet exampleSet, Attribute attribute, double currentValue, java.lang.String valueString) Returns the value of the replenishment function with the given index.
boolean	replenishValue(double currentValue) Returns true iff the value should be replenished.

Methods inherited from class com.rapidminer.operator.preprocessing.filter.ValueReplenishment

apply, getParameterTypes

Methods inherited from class com.rapidminer.operator.AbstractExampleSetProcessing

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

Constructor Detail

MissingValueReplenishment

public MissingValueReplenishment(OperatorDescription description)

Method Detail

getFunctionNames

public java.lang.String[] getFunctionNames()

Description copied from class: ValueReplenishment

Returns an array of all replenishment functions.

Specified by:

getFunctionNames in class ValueReplenishment

getDefaultFunction

public int getDefaultFunction()

Description copied from class: ValueReplenishment

Returns the index of the replenishment function which will be used for attributes not listed in the parameter list "columns".

Specified by:

getDefaultFunction in class ValueReplenishment

getDefaultColumnFunction

public int getDefaultColumnFunction()

Description copied from class: ValueReplenishment

Returns the index of the replenishment function which will be used for attributes listed in the parameter list "columns".

Specified by:

getDefaultColumnFunction in class ValueReplenishment

replenishValue

public boolean replenishValue(double currentValue)

Description copied from class: ValueReplenishment

Returns true iff the value should be replenished.

Specified by:

replenishValue in class ValueReplenishment

getReplenishmentValue

public double getReplenishmentValue(int functionIndex,
                                    ExampleSet exampleSet,
                                    Attribute attribute,
                                    double currentValue,
                                    java.lang.String valueString)

Description copied from class: ValueReplenishment

Returns the value of the replenishment function with the given index.

Specified by:

getReplenishmentValue in class ValueReplenishment