com.rapidminer.operator.visualization
Class DataStatisticsOperator

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.visualization.DataStatisticsOperator

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ParameterHandler, LoggingHandler

public class DataStatisticsOperator
extends Operator

This operators calculates some very simple statistics about the given example set. These are the ranges of the attributes and the average or mode values for numerical or nominal attributes respectively. These informations are automatically calculated and displayed by the graphical user interface of RapidMiner. Since they cannot be displayed with the command line version of RapidMiner this operator can be used as a workaround in cases where the graphical user interface cannot be used.

Author:

Ingo Mierswa ingomierswa Exp $

Constructor Summary

DataStatisticsOperator(OperatorDescription description)
Creates a new data statistics operator.

Method Summary

IOObject[]	apply() Creates and delivers the simple statistics object.
java.lang.Class<?>[]	getInputClasses() Requires an example set.
java.lang.Class<?>[]	getOutputClasses() Returns the example set and the statistics.

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, getParameterTypes, 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

DataStatisticsOperator

public DataStatisticsOperator(OperatorDescription description)

Creates a new data statistics operator.

Method Detail

apply

public IOObject[] apply()
                 throws OperatorException

Creates and delivers the simple statistics object.

Specified by:

apply in class Operator

Throws:

OperatorException

getInputClasses

public java.lang.Class<?>[] getInputClasses()

Requires an example set.

Specified by:

getInputClasses in class Operator

getOutputClasses

public java.lang.Class<?>[] getOutputClasses()

Returns the example set and the statistics.

Specified by:

getOutputClasses in class Operator