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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_13) on Mon Jul 14 01:36:20 CEST 2008 --><TITLE>Operator (RapidMiner Class Documentation)</TITLE><META NAME="keywords" CONTENT="com.rapidminer.operator.Operator class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Operator (RapidMiner Class Documentation)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Operator.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../com/rapidminer/operator/ModelUpdater.html" title="class in com.rapidminer.operator"><B>PREV CLASS</B></A> <A HREF="../../../com/rapidminer/operator/OperatorChain.html" title="class in com.rapidminer.operator"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?com/rapidminer/operator/Operator.html" target="_top"><B>FRAMES</B></A> <A HREF="Operator.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">com.rapidminer.operator</FONT><BR>Class Operator</H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.rapidminer.operator.Operator</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../com/rapidminer/gui/wizards/ConfigurationListener.html" title="interface in com.rapidminer.gui.wizards">ConfigurationListener</A>, <A HREF="../../../com/rapidminer/gui/wizards/PreviewListener.html" title="interface in com.rapidminer.gui.wizards">PreviewListener</A>, <A HREF="../../../com/rapidminer/parameter/ParameterHandler.html" title="interface in com.rapidminer.parameter">ParameterHandler</A>, <A HREF="../../../com/rapidminer/tools/LoggingHandler.html" title="interface in com.rapidminer.tools">LoggingHandler</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../com/rapidminer/operator/preprocessing/sampling/AbsoluteSampling.html" title="class in com.rapidminer.operator.preprocessing.sampling">AbsoluteSampling</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/sampling/AbstractBootstrapping.html" title="class in com.rapidminer.operator.preprocessing.sampling">AbstractBootstrapping</A>, <A HREF="../../../com/rapidminer/operator/learner/clustering/clusterer/AbstractClustering.html" title="class in com.rapidminer.operator.learner.clustering.clusterer">AbstractClustering</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/AbstractExampleSetJoin.html" title="class in com.rapidminer.operator.preprocessing">AbstractExampleSetJoin</A>, <A HREF="../../../com/rapidminer/operator/learner/AbstractLearner.html" title="class in com.rapidminer.operator.learner">AbstractLearner</A>, <A HREF="../../../com/rapidminer/operator/performance/AbstractPerformanceEvaluator.html" title="class in com.rapidminer.operator.performance">AbstractPerformanceEvaluator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/sampling/AbstractStratifiedSampling.html" title="class in com.rapidminer.operator.preprocessing.sampling">AbstractStratifiedSampling</A>, <A HREF="../../../com/rapidminer/operator/features/weighting/AbstractWeighting.html" title="class in com.rapidminer.operator.features.weighting">AbstractWeighting</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/AddNominalValue.html" title="class in com.rapidminer.operator.preprocessing.filter">AddNominalValue</A>, <A HREF="../../../com/rapidminer/operator/olap/aggregation/AggregationOperator.html" title="class in com.rapidminer.operator.olap.aggregation">AggregationOperator</A>, <A HREF="../../../com/rapidminer/operator/olap/ANOVAMatrixOperator.html" title="class in com.rapidminer.operator.olap">ANOVAMatrixOperator</A>, <A HREF="../../../com/rapidminer/operator/io/ArffExampleSetWriter.html" title="class in com.rapidminer.operator.io">ArffExampleSetWriter</A>, <A HREF="../../../com/rapidminer/operator/io/ArffExampleSource.html" title="class in com.rapidminer.operator.io">ArffExampleSource</A>, <A HREF="../../../com/rapidminer/operator/learner/associations/AssociationRuleGenerator.html" title="class in com.rapidminer.operator.learner.associations">AssociationRuleGenerator</A>, <A HREF="../../../com/rapidminer/operator/io/AttributeConstructionsLoader.html" title="class in com.rapidminer.operator.io">AttributeConstructionsLoader</A>, <A HREF="../../../com/rapidminer/operator/io/AttributeConstructionsWriter.html" title="class in com.rapidminer.operator.io">AttributeConstructionsWriter</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/AttributeCopy.html" title="class in com.rapidminer.operator.preprocessing.filter">AttributeCopy</A>, <A HREF="../../../com/rapidminer/operator/performance/AttributeCounter.html" title="class in com.rapidminer.operator.performance">AttributeCounter</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/attributes/AttributeFilter.html" title="class in com.rapidminer.operator.preprocessing.filter.attributes">AttributeFilter</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/AttributeMerge.html" title="class in com.rapidminer.operator.preprocessing.filter">AttributeMerge</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/AttributeValueMapper.html" title="class in com.rapidminer.operator.preprocessing.filter">AttributeValueMapper</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/AttributeValueSubstring.html" title="class in com.rapidminer.operator.preprocessing.filter">AttributeValueSubstring</A>, <A HREF="../../../com/rapidminer/operator/features/AttributeWeightsApplier.html" title="class in com.rapidminer.operator.features">AttributeWeightsApplier</A>, <A HREF="../../../com/rapidminer/operator/features/weighting/AttributeWeightsCreator.html" title="class in com.rapidminer.operator.features.weighting">AttributeWeightsCreator</A>, <A HREF="../../../com/rapidminer/operator/features/selection/AttributeWeightSelection.html" title="class in com.rapidminer.operator.features.selection">AttributeWeightSelection</A>, <A HREF="../../../com/rapidminer/operator/io/AttributeWeightsLoader.html" title="class in com.rapidminer.operator.io">AttributeWeightsLoader</A>, <A HREF="../../../com/rapidminer/operator/io/AttributeWeightsWriter.html" title="class in com.rapidminer.operator.io">AttributeWeightsWriter</A>, <A HREF="../../../com/rapidminer/operator/meta/AverageBuilder.html" title="class in com.rapidminer.operator.meta">AverageBuilder</A>, <A HREF="../../../com/rapidminer/operator/validation/clustering/BestMatchClusterModelSimilarity.html" title="class in com.rapidminer.operator.validation.clustering">BestMatchClusterModelSimilarity</A>, <A HREF="../../../com/rapidminer/operator/io/BytewiseExampleSource.html" title="class in com.rapidminer.operator.io">BytewiseExampleSource</A>, <A HREF="../../../com/rapidminer/operator/io/C45ExampleSource.html" title="class in com.rapidminer.operator.io">C45ExampleSource</A>, <A HREF="../../../com/rapidminer/operator/io/CachedDatabaseExampleSource.html" title="class in com.rapidminer.operator.io">CachedDatabaseExampleSource</A>, <A HREF="../../../com/rapidminer/operator/validation/clustering/CentroidBasedEvaluator.html" title="class in com.rapidminer.operator.validation.clustering">CentroidBasedEvaluator</A>, <A HREF="../../../com/rapidminer/operator/validation/CFSFeatureSetEvaluator.html" title="class in com.rapidminer.operator.validation">CFSFeatureSetEvaluator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/ChangeAttributeName.html" title="class in com.rapidminer.operator.preprocessing.filter">ChangeAttributeName</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/ChangeAttributeRole.html" title="class in com.rapidminer.operator.preprocessing.filter">ChangeAttributeRole</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/ChangeAttributeType.html" title="class in com.rapidminer.operator.preprocessing.filter">ChangeAttributeType</A>, <A HREF="../../../com/rapidminer/operator/generator/ChurnReductionExampleSetGenerator.html" title="class in com.rapidminer.operator.generator">ChurnReductionExampleSetGenerator</A>, <A HREF="../../../com/rapidminer/operator/validation/clustering/ClusterConstraintsEvaluator.html" title="class in com.rapidminer.operator.validation.clustering">ClusterConstraintsEvaluator</A>, <A HREF="../../../com/rapidminer/operator/validation/clustering/ClusterDensityEvaluator.html" title="class in com.rapidminer.operator.validation.clustering">ClusterDensityEvaluator</A>, <A HREF="../../../com/rapidminer/operator/validation/clustering/ClusterEntropyEvaluator.html" title="class in com.rapidminer.operator.validation.clustering">ClusterEntropyEvaluator</A>, <A HREF="../../../com/rapidminer/operator/similarity/clustermodel/ClusterModel2Similarity.html" title="class in com.rapidminer.operator.similarity.clustermodel">ClusterModel2Similarity</A>, <A HREF="../../../com/rapidminer/operator/validation/clustering/ClusterModelLabelSimilarity.html" title="class in com.rapidminer.operator.validation.clustering">ClusterModelLabelSimilarity</A>, <A HREF="../../../com/rapidminer/operator/io/ClusterModelReader.html" title="class in com.rapidminer.operator.io">ClusterModelReader</A>, <A HREF="../../../com/rapidminer/operator/io/ClusterModelWriter.html" title="class in com.rapidminer.operator.io">ClusterModelWriter</A>, <A HREF="../../../com/rapidminer/operator/validation/clustering/ClusterNumberEvaluator.html" title="class in com.rapidminer.operator.validation.clustering">ClusterNumberEvaluator</A>, <A HREF="../../../com/rapidminer/operator/CommandLineOperator.html" title="class in com.rapidminer.operator">CommandLineOperator</A>, <A HREF="../../../com/rapidminer/operator/features/construction/CompleteFeatureGenerationOperator.html" title="class in com.rapidminer.operator.features.construction">CompleteFeatureGenerationOperator</A>, <A HREF="../../../com/rapidminer/operator/features/weighting/ComponentWeights.html" title="class in com.rapidminer.operator.features.weighting">ComponentWeights</A>, <A HREF="../../../com/rapidminer/operator/validation/ConsistencyFeatureSetEvaluator.html" title="class in com.rapidminer.operator.validation">ConsistencyFeatureSetEvaluator</A>, <A HREF="../../../com/rapidminer/operator/visualization/CorrelationMatrixOperator.html" title="class in com.rapidminer.operator.visualization">CorrelationMatrixOperator</A>, <A HREF="../../../com/rapidminer/operator/performance/cost/CostEvaluator.html" title="class in com.rapidminer.operator.performance.cost">CostEvaluator</A>, <A HREF="../../../com/rapidminer/operator/visualization/CovarianceMatrixOperator.html" title="class in com.rapidminer.operator.visualization">CovarianceMatrixOperator</A>, <A HREF="../../../com/rapidminer/operator/io/CSVExampleSetWriter.html" title="class in com.rapidminer.operator.io">CSVExampleSetWriter</A>, <A HREF="../../../com/rapidminer/operator/io/DatabaseExampleSetWriter.html" title="class in com.rapidminer.operator.io">DatabaseExampleSetWriter</A>, <A HREF="../../../com/rapidminer/operator/visualization/DataStatisticsOperator.html" title="class in com.rapidminer.operator.visualization">DataStatisticsOperator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/Date2Nominal.html" title="class in com.rapidminer.operator.preprocessing.filter">Date2Nominal</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/outlier/DBOutlierOperator.html" title="class in com.rapidminer.operator.preprocessing.outlier">DBOutlierOperator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/Deobfuscator.html" title="class in com.rapidminer.operator.preprocessing">Deobfuscator</A>, <A HREF="../../../com/rapidminer/operator/features/transformation/DimensionalityReducer.html" title="class in com.rapidminer.operator.features.transformation">DimensionalityReducer</A>, <A HREF="../../../com/rapidminer/operator/generator/DirectMailingExampleSetGenerator.html" title="class in com.rapidminer.operator.generator">DirectMailingExampleSetGenerator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/outlier/DKNOutlierOperator.html" title="class in com.rapidminer.operator.preprocessing.outlier">DKNOutlierOperator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/weighting/EqualLabelWeighting.html" title="class in com.rapidminer.operator.preprocessing.weighting">EqualLabelWeighting</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/ExampleFilter.html" title="class in com.rapidminer.operator.preprocessing.filter">ExampleFilter</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/ExampleRangeFilter.html" title="class in com.rapidminer.operator.preprocessing.filter">ExampleRangeFilter</A>, <A HREF="../../../com/rapidminer/operator/learner/clustering/constrained/constraints/ExampleSet2ClusterConstraintList.html" title="class in com.rapidminer.operator.learner.clustering.constrained.constraints">ExampleSet2ClusterConstraintList</A>, <A 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com.rapidminer.operator.visualization">ExampleVisualizationOperator</A>, <A HREF="../../../com/rapidminer/operator/io/ExcelExampleSetWriter.html" title="class in com.rapidminer.operator.io">ExcelExampleSetWriter</A>, <A HREF="../../../com/rapidminer/operator/io/ExcelExampleSource.html" title="class in com.rapidminer.operator.io">ExcelExampleSource</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/ExchangeAttributeRoles.html" title="class in com.rapidminer.operator.preprocessing.filter">ExchangeAttributeRoles</A>, <A HREF="../../../com/rapidminer/operator/features/transformation/FastICA.html" title="class in com.rapidminer.operator.features.transformation">FastICA</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/FeatureFilter.html" title="class in com.rapidminer.operator.preprocessing.filter">FeatureFilter</A>, <A HREF="../../../com/rapidminer/operator/features/construction/FeatureGenerationOperator.html" title="class in com.rapidminer.operator.features.construction">FeatureGenerationOperator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/FeatureRangeRemoval.html" title="class in com.rapidminer.operator.preprocessing.filter">FeatureRangeRemoval</A>, <A HREF="../../../com/rapidminer/operator/FileEchoOperator.html" title="class in com.rapidminer.operator">FileEchoOperator</A>, <A HREF="../../../com/rapidminer/operator/learner/clustering/FlatClusterModel2ExampleSet.html" title="class in com.rapidminer.operator.learner.clustering">FlatClusterModel2ExampleSet</A>, <A HREF="../../../com/rapidminer/operator/learner/clustering/FlattenClusterModel.html" title="class in com.rapidminer.operator.learner.clustering">FlattenClusterModel</A>, <A HREF="../../../com/rapidminer/operator/features/transformation/FourierTransform.html" title="class in com.rapidminer.operator.features.transformation">FourierTransform</A>, <A HREF="../../../com/rapidminer/operator/learner/associations/fpgrowth/FPGrowth.html" title="class in com.rapidminer.operator.learner.associations.fpgrowth">FPGrowth</A>, <A HREF="../../../com/rapidminer/operator/learner/associations/FrequentItemSetAttributeCreator.html" title="class in com.rapidminer.operator.learner.associations">FrequentItemSetAttributeCreator</A>, <A HREF="../../../com/rapidminer/operator/learner/associations/FrequentItemSetUnificator.html" title="class in com.rapidminer.operator.learner.associations">FrequentItemSetUnificator</A>, <A HREF="../../../com/rapidminer/operator/learner/weka/GenericWekaAssociationLearner.html" title="class in com.rapidminer.operator.learner.weka">GenericWekaAssociationLearner</A>, <A HREF="../../../com/rapidminer/operator/features/transformation/GHA.html" title="class in com.rapidminer.operator.features.transformation">GHA</A>, <A HREF="../../../com/rapidminer/operator/io/GNUPlotOperator.html" title="class in com.rapidminer.operator.io">GNUPlotOperator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/GroupByOperator.html" title="class in com.rapidminer.operator.preprocessing">GroupByOperator</A>, <A HREF="../../../com/rapidminer/operator/olap/GroupedANOVAOperator.html" title="class in com.rapidminer.operator.olap">GroupedANOVAOperator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/GuessValueTypes.html" title="class in com.rapidminer.operator.preprocessing">GuessValueTypes</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/IdTagging.html" title="class in com.rapidminer.operator.preprocessing">IdTagging</A>, <A HREF="../../../com/rapidminer/operator/features/weighting/InteractiveAttributeWeighting.html" title="class in com.rapidminer.operator.features.weighting">InteractiveAttributeWeighting</A>, <A HREF="../../../com/rapidminer/operator/IOConsumeOperator.html" title="class in com.rapidminer.operator">IOConsumeOperator</A>, <A 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com.rapidminer.operator.preprocessing.filter">PermutationOperator</A>, <A HREF="../../../com/rapidminer/operator/postprocessing/PlattScaling.html" title="class in com.rapidminer.operator.postprocessing">PlattScaling</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/PreprocessingOperator.html" title="class in com.rapidminer.operator.preprocessing">PreprocessingOperator</A>, <A HREF="../../../com/rapidminer/operator/features/transformation/PrincipalComponentsTransformation.html" title="class in com.rapidminer.operator.features.transformation">PrincipalComponentsTransformation</A>, <A HREF="../../../com/rapidminer/operator/meta/ProcessEmbeddingOperator.html" title="class in com.rapidminer.operator.meta">ProcessEmbeddingOperator</A>, <A HREF="../../../com/rapidminer/operator/visualization/ProcessLogOperator.html" title="class in com.rapidminer.operator.visualization">ProcessLogOperator</A>, <A HREF="../../../com/rapidminer/operator/features/selection/RandomSelection.html" title="class in com.rapidminer.operator.features.selection">RandomSelection</A>, <A HREF="../../../com/rapidminer/operator/features/selection/RemoveCorrelatedFeatures.html" title="class in com.rapidminer.operator.features.selection">RemoveCorrelatedFeatures</A>, <A HREF="../../../com/rapidminer/operator/features/selection/RemoveUselessFeatures.html" title="class in com.rapidminer.operator.features.selection">RemoveUselessFeatures</A>, <A HREF="../../../com/rapidminer/operator/io/ResultSetExampleSource.html" title="class in com.rapidminer.operator.io">ResultSetExampleSource</A>, <A HREF="../../../com/rapidminer/operator/io/ResultWriter.html" title="class in com.rapidminer.operator.io">ResultWriter</A>, <A HREF="../../../com/rapidminer/operator/visualization/ROCChartGenerator.html" title="class in com.rapidminer.operator.visualization">ROCChartGenerator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/Series2WindowExamples.html" title="class in com.rapidminer.operator.preprocessing.filter">Series2WindowExamples</A>, <A HREF="../../../com/rapidminer/operator/validation/significance/SignificanceTestOperator.html" title="class in com.rapidminer.operator.validation.significance">SignificanceTestOperator</A>, <A HREF="../../../com/rapidminer/operator/similarity/SimilarityComparator.html" title="class in com.rapidminer.operator.similarity">SimilarityComparator</A>, <A HREF="../../../com/rapidminer/operator/io/SimpleExampleSource.html" title="class in com.rapidminer.operator.io">SimpleExampleSource</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/sampling/SimpleSampling.html" title="class in com.rapidminer.operator.preprocessing.sampling">SimpleSampling</A>, <A HREF="../../../com/rapidminer/operator/postprocessing/SimpleUncertainPredictionsTransformation.html" title="class in com.rapidminer.operator.postprocessing">SimpleUncertainPredictionsTransformation</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/SingleAttributes2ValueSeries.html" title="class in com.rapidminer.operator.preprocessing.filter">SingleAttributes2ValueSeries</A>, <A HREF="../../../com/rapidminer/operator/SingleMacroDefinitionOperator.html" title="class in com.rapidminer.operator">SingleMacroDefinitionOperator</A>, <A HREF="../../../com/rapidminer/operator/features/transformation/SOMDimensionalityReduction.html" title="class in com.rapidminer.operator.features.transformation">SOMDimensionalityReduction</A>, <A HREF="../../../com/rapidminer/operator/visualization/SOMModelVisualization.html" title="class in com.rapidminer.operator.visualization">SOMModelVisualization</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/Sorting.html" title="class in com.rapidminer.operator.preprocessing.filter">Sorting</A>, <A HREF="../../../com/rapidminer/operator/io/SparseFormatExampleSource.html" title="class in com.rapidminer.operator.io">SparseFormatExampleSource</A>, <A HREF="../../../com/rapidminer/operator/generator/TeamProfitExampleSetGenerator.html" title="class in com.rapidminer.operator.generator">TeamProfitExampleSetGenerator</A>, <A HREF="../../../com/rapidminer/operator/validation/clustering/TestEvaluator.html" title="class in com.rapidminer.operator.validation.clustering">TestEvaluator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/TFIDFFilter.html" title="class in com.rapidminer.operator.preprocessing.filter">TFIDFFilter</A>, <A HREF="../../../com/rapidminer/operator/postprocessing/ThresholdApplier.html" title="class in com.rapidminer.operator.postprocessing">ThresholdApplier</A>, <A HREF="../../../com/rapidminer/operator/postprocessing/ThresholdCreator.html" title="class in com.rapidminer.operator.postprocessing">ThresholdCreator</A>, <A HREF="../../../com/rapidminer/operator/postprocessing/ThresholdFinder.html" title="class in com.rapidminer.operator.postprocessing">ThresholdFinder</A>, <A HREF="../../../com/rapidminer/operator/io/ThresholdLoader.html" title="class in com.rapidminer.operator.io">ThresholdLoader</A>, <A HREF="../../../com/rapidminer/operator/io/ThresholdWriter.html" title="class in com.rapidminer.operator.io">ThresholdWriter</A>, <A HREF="../../../com/rapidminer/operator/generator/TransfersExampleSetGenerator.html" title="class in com.rapidminer.operator.generator">TransfersExampleSetGenerator</A>, <A HREF="../../../com/rapidminer/operator/similarity/TransitionMatrix.html" title="class in com.rapidminer.operator.similarity">TransitionMatrix</A>, <A HREF="../../../com/rapidminer/operator/generator/UpSellingExampleSetGenerator.html" title="class in com.rapidminer.operator.generator">UpSellingExampleSetGenerator</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/UseRowAsAttributeNames.html" title="class in com.rapidminer.operator.preprocessing">UseRowAsAttributeNames</A>, <A HREF="../../../com/rapidminer/operator/preprocessing/filter/ValueReplenishment.html" title="class in com.rapidminer.operator.preprocessing.filter">ValueReplenishment</A>, <A HREF="../../../com/rapidminer/operator/performance/WeightedPerformanceCreator.html" title="class in com.rapidminer.operator.performance">WeightedPerformanceCreator</A>, <A HREF="../../../com/rapidminer/operator/io/WekaModelLoader.html" title="class in com.rapidminer.operator.io">WekaModelLoader</A>, <A HREF="../../../com/rapidminer/operator/io/XrffExampleSetWriter.html" title="class in com.rapidminer.operator.io">XrffExampleSetWriter</A>, <A HREF="../../../com/rapidminer/operator/io/XrffExampleSource.html" title="class in com.rapidminer.operator.io">XrffExampleSource</A></DD></DL><HR><DL><DT><PRE>public abstract class <B>Operator</B><DT>extends java.lang.Object<DT>implements <A HREF="../../../com/rapidminer/gui/wizards/ConfigurationListener.html" title="interface in com.rapidminer.gui.wizards">ConfigurationListener</A>, <A HREF="../../../com/rapidminer/gui/wizards/PreviewListener.html" title="interface in com.rapidminer.gui.wizards">PreviewListener</A>, <A HREF="../../../com/rapidminer/tools/LoggingHandler.html" title="interface in com.rapidminer.tools">LoggingHandler</A>, <A HREF="../../../com/rapidminer/parameter/ParameterHandler.html" title="interface in com.rapidminer.parameter">ParameterHandler</A></DL></PRE><P><p> An operator accepts an array of input objects and generates an array of output objects that can be processed by other operators. Both must implement the IOObject interface. This is the superclass which must be extended by all RapidMiner operators. Please refer to the RapidMiner tutorial for a detailed description how to implement your operator. </p> <p> As default, operators consume their input by using it. This is often a useful behavior especially in complex processes. For example, a learning operator consumes an example set to produce a model and so does a cross validation to produce a performance value of the learning method. To receive the input <A HREF="../../../com/rapidminer/operator/IOObject.html" title="interface in com.rapidminer.operator"><CODE>IOObject</CODE></A> of a certain class simply use <A HREF="../../../com/rapidminer/operator/Operator.html#getInput(java.lang.Class)"><CODE>getInput(Class class)</CODE></A>. This method delivers the first object of the desired class which is in the input of this operator. The delivered object is consumed afterwards and thus is removed from input. If the operator alters this object, it should return the altered object as output again. Therefore, you have to add the object to the output array which is delivered by the <A HREF="../../../com/rapidminer/operator/Operator.html#apply()"><CODE>apply()</CODE></A> method of the operator. You also have to declare it in <A HREF="../../../com/rapidminer/operator/Operator.html#getOutputClasses()"><CODE>getOutputClasses()</CODE></A>. All input objects which are not used by your operator will be automatically passed to the next operators.⌨️ 快捷键说明
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