com.rapidminer.operator.preprocessing
Class GuessValueTypes

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.AbstractExampleSetProcessing
          com.rapidminer.operator.preprocessing.AbstractDataProcessing
              com.rapidminer.operator.preprocessing.GuessValueTypes

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ParameterHandler, LoggingHandler

public class GuessValueTypes
extends AbstractDataProcessing

This operator can be used to (re-)guess the value types of all attributes. This might be useful after some preprocessing transformations and "purifying" some of the columns, especially if columns which were nominal before can be handled as numerical columns. With this operator, the value types of all attributes do not have to be transformed manually with operators like NominalNumbers2Numerical.

Author:

Ingo Mierswa

Field Summary

static java.lang.String	PARAMETER_APPLY_ON_SPECIAL Indicates if this operator should also be applied for the special attributes.
static java.lang.String	PARAMETER_DECIMAL_POINT_CHARACTER The parameter name for "Character that is used as decimal point.
static java.lang.String	PARAMETER_NUMBER_GROUPING_CHARACTER The parameter name for "Character that is used as decimal point.

Constructor Summary

GuessValueTypes(OperatorDescription description)

Method Summary

ExampleSet	apply(ExampleSet exampleSet) Delegate for the apply method.
java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.

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

Field Detail

PARAMETER_DECIMAL_POINT_CHARACTER

public static final java.lang.String PARAMETER_DECIMAL_POINT_CHARACTER

The parameter name for "Character that is used as decimal point."

See Also:

Constant Field Values

PARAMETER_NUMBER_GROUPING_CHARACTER

public static final java.lang.String PARAMETER_NUMBER_GROUPING_CHARACTER

The parameter name for "Character that is used as decimal point."

See Also:

Constant Field Values

PARAMETER_APPLY_ON_SPECIAL

public static final java.lang.String PARAMETER_APPLY_ON_SPECIAL

Indicates if this operator should also be applied for the special attributes.

See Also:

Constant Field Values

Constructor Detail

GuessValueTypes

public GuessValueTypes(OperatorDescription description)

Method Detail

apply

public ExampleSet apply(ExampleSet exampleSet)
                 throws OperatorException

Description copied from class: AbstractExampleSetProcessing

Delegate for the apply method. In most cases, the returned example set will be the same as the example set or a modified clone.

Specified by:

apply in class AbstractExampleSetProcessing

Throws:

OperatorException

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