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

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.SquaredError

All Implemented Interfaces:

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

public class SquaredError
extends SimpleCriterion

The squared error. Sums up the square of the absolute deviations and divides the sum by the number of examples.

Version:

$Id: SquaredError.java,v 2.11 2006/08/03 14:39:30 ingomierswa Exp $

Author:

Ingo Mierswa, Simon Fischer

Constructor Summary

SquaredError()

Method Summary

double	countExample(double label, double predictedLabel) Calculates the error for the current example.
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

SquaredError

public SquaredError()

Method Detail

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

countExample

public double countExample(double label,
                           double predictedLabel)

Calculates the error for the current example.

Specified by:

countExample in class SimpleCriterion

getDescription

public java.lang.String getDescription()

Description copied from class: MeasuredPerformance

Returns a description of the performance criterion.

Specified by:

getDescription in class MeasuredPerformance