edu.udo.cs.yale.operator.performance
Class RelativeError

java.lang.Object
  edu.udo.cs.yale.operator.AbstractIOObject
      edu.udo.cs.yale.operator.ResultObjectAdapter
          edu.udo.cs.yale.tools.math.Averagable
              edu.udo.cs.yale.operator.performance.PerformanceCriterion
                  edu.udo.cs.yale.operator.performance.MeasuredPerformance
                      edu.udo.cs.yale.operator.performance.SimpleCriterion
                          edu.udo.cs.yale.operator.performance.RelativeError

All Implemented Interfaces:

IOObject, ResultObject, java.lang.Cloneable, java.lang.Comparable<Averagable>

public class RelativeError
extends SimpleCriterion

The average relative error: Sum(|label-predicted|/label)/#examples. The relative error of label 0 and prediction 0 is defined as 0, the relative error of label 0 and prediction != 0 is infinite.

Version:

$Id: RelativeError.java,v 2.14 2006/08/03 14:39:30 ingomierswa Exp $

Author:

Stefan Rueping

Constructor Summary

RelativeError()

Method Summary

double	countExample(double label, double predictedLabel) Subclasses must count the example and return the value to sum up.
java.lang.String	getDescription() Returns a description of the performance criterion.
java.lang.String	getName() Returns the name of this averagable.

Methods inherited from class edu.udo.cs.yale.operator.performance.SimpleCriterion

buildSingleAverage, cloneAveragable, countExample, countExample, getExampleCount, getFitness, getMikroAverage, getMikroVariance, readCriterionData, startCounting, transform, writeCriterionData

Methods inherited from class edu.udo.cs.yale.operator.performance.PerformanceCriterion

compareTo, getMaxFitness, readPerformanceCriterion, writePerformanceCriterion

Methods inherited from class edu.udo.cs.yale.tools.math.Averagable

buildAverage, clone, formatDeviation, formatPercent, formatValue, getAverage, getMakroAverage, getMakroStandardDeviation, getMakroVariance, getMikroStandardDeviation, getStandardDeviation, getVariance, toHTML, toString

Methods inherited from class edu.udo.cs.yale.operator.ResultObjectAdapter

addAction, getActions, getVisualisationComponent, toHTML, toResultString

Methods inherited from class edu.udo.cs.yale.operator.AbstractIOObject

copy, read, read, read, write, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.udo.cs.yale.operator.IOObject

copy, write, write

Constructor Detail

RelativeError

public RelativeError()

Method Detail

countExample

public double countExample(double label,
                           double predictedLabel)

Description copied from class: SimpleCriterion

Subclasses must count the example and return the value to sum up.

Specified by:

countExample in class SimpleCriterion

getName

public java.lang.String getName()

Description copied from class: Averagable

Returns the name of this averagable.

Specified by:

getName in interface ResultObject

Specified by:

getName in class Averagable

getDescription

public java.lang.String getDescription()

Description copied from class: MeasuredPerformance

Returns a description of the performance criterion.

Specified by:

getDescription in class MeasuredPerformance