com.rapidminer.operator.learner.tree
Class AccuracyCriterion

java.lang.Object
  com.rapidminer.operator.learner.tree.AbstractCriterion
      com.rapidminer.operator.learner.tree.AccuracyCriterion

All Implemented Interfaces:

Criterion

public class AccuracyCriterion
extends AbstractCriterion

Calculates the accuracies for the given split if the children predict the majority classes.

Author:

Ingo Mierswa

Field Summary

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

labelAttribute, leftLabelWeights, leftWeight, rightLabelWeights, rightWeight, totalLabelWeights, totalWeight, weightAttribute

Constructor Summary

AccuracyCriterion()

Method Summary

protected double	getBenefit(double[][] weightCounts)
double	getIncrementalBenefit()
double	getNominalBenefit(ExampleSet exampleSet, Attribute attribute)
double	getNumericalBenefit(ExampleSet exampleSet, Attribute attribute, double splitValue)
boolean	supportsIncrementalCalculation()

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

startIncrementalCalculation, swapExample

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AccuracyCriterion

public AccuracyCriterion()

Method Detail

getNominalBenefit

public double getNominalBenefit(ExampleSet exampleSet,
                                Attribute attribute)

getNumericalBenefit

public double getNumericalBenefit(ExampleSet exampleSet,
                                  Attribute attribute,
                                  double splitValue)

getBenefit

protected double getBenefit(double[][] weightCounts)

supportsIncrementalCalculation

public boolean supportsIncrementalCalculation()

Specified by:

supportsIncrementalCalculation in interface Criterion

Overrides:

supportsIncrementalCalculation in class AbstractCriterion

getIncrementalBenefit

public double getIncrementalBenefit()

Specified by:

getIncrementalBenefit in interface Criterion

Overrides:

getIncrementalBenefit in class AbstractCriterion