com.rapidminer.operator.learner.tree
Class DecisionStumpLearner

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.learner.AbstractLearner
          com.rapidminer.operator.learner.tree.AbstractTreeLearner
              com.rapidminer.operator.learner.tree.DecisionStumpLearner

All Implemented Interfaces:

ConfigurationListener, PreviewListener, Learner, ParameterHandler, LoggingHandler

public class DecisionStumpLearner
extends AbstractTreeLearner

This operator learns decision stumps, i.e. a small decision tree with only one single split. This decision stump works on both numerical and nominal attributes.

Author:

Ingo Mierswa

Field Summary

Fields inherited from class com.rapidminer.operator.learner.tree.AbstractTreeLearner

CRITERIA_CLASSES, CRITERIA_NAMES, CRITERION_ACCURACY, CRITERION_GAIN_RATIO, CRITERION_GINI_INDEX, CRITERION_INFO_GAIN, PARAMETER_CRITERION, PARAMETER_MINIMAL_GAIN, PARAMETER_MINIMAL_LEAF_SIZE, PARAMETER_MINIMAL_SIZE_FOR_SPLIT

Fields inherited from class com.rapidminer.operator.learner.AbstractLearner

PROPERTY_RAPIDMINER_GENERAL_CAPABILITIES_WARN

Constructor Summary

DecisionStumpLearner(OperatorDescription description)

Method Summary

java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.
Pruner	getPruner() Returns the pruner for this tree learner.
java.util.List<Terminator>	getTerminationCriteria(ExampleSet exampleSet) Returns all termination criteria.
protected TreeBuilder	getTreeBuilder(ExampleSet exampleSet)
boolean	supportsCapability(LearnerCapability capability) Checks for Learner capabilities.

Methods inherited from class com.rapidminer.operator.learner.tree.AbstractTreeLearner

createCriterion, getSplitPreprocessing, learn

Methods inherited from class com.rapidminer.operator.learner.AbstractLearner

apply, getEstimatedPerformance, getInputClasses, getInputDescription, getOptimizationPerformance, getOutputClasses, getWeights, onlyWarnForNonSufficientCapabilities, shouldCalculateWeights, shouldDeliverOptimizationPerformance, shouldEstimatePerformance

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, 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

Methods inherited from interface com.rapidminer.operator.learner.Learner

getName

Constructor Detail

DecisionStumpLearner

public DecisionStumpLearner(OperatorDescription description)

Method Detail

getPruner

public Pruner getPruner()
                 throws OperatorException

Description copied from class: AbstractTreeLearner

Returns the pruner for this tree learner. If this method returns null, pruning will be disabled.

Specified by:

getPruner in class AbstractTreeLearner

Throws:

OperatorException

getTerminationCriteria

public java.util.List<Terminator> getTerminationCriteria(ExampleSet exampleSet)

Description copied from class: AbstractTreeLearner

Returns all termination criteria.

Specified by:

getTerminationCriteria in class AbstractTreeLearner

supportsCapability

public boolean supportsCapability(LearnerCapability capability)

Description copied from interface: Learner

Checks for Learner capabilities. Should return true if the given capability is supported.

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 AbstractTreeLearner

getTreeBuilder

protected TreeBuilder getTreeBuilder(ExampleSet exampleSet)
                              throws OperatorException

Specified by:

getTreeBuilder in class AbstractTreeLearner

Throws:

OperatorException