weka.classifiers.timeseries.eval

Class MAPEModule

java.lang.Object

weka.classifiers.timeseries.eval.TSEvalModule

weka.classifiers.timeseries.eval.ErrorModule

weka.classifiers.timeseries.eval.MAPEModule

public class MAPEModule
extends ErrorModule

Computes the mean absolute percentage error

Version:

$Revision: 46478 $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}com)

Constructor Summary

Constructors

Constructor and Description
MAPEModule()

Method Summary

Methods

Modifier and Type	Method and Description
double[]	calculateMeasure() Calculate the measure that this module represents.
String	getDefinition() Return the mathematical formula that this evaluation module computes.
String	getDescription() Return the longer (single sentence) description of this evaluation module
String	getEvalName() Return the short identifying name of this evaluation module

Methods inherited from class weka.classifiers.timeseries.eval.ErrorModule

countsForTargets, evaluateForInstance, getErrorsForTarget, getPredictionsForAllTargets, getPredictionsForTarget, reset, toString, toSummaryString

Methods inherited from class weka.classifiers.timeseries.eval.TSEvalModule

getModule, getModuleList, getTargetFields, setTargetFields

Methods inherited from class java.lang.Object

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

Constructor Detail

MAPEModule

public MAPEModule()

Method Detail

getEvalName

public String getEvalName()

Description copied from class: ErrorModule

Return the short identifying name of this evaluation module

Overrides:

getEvalName in class ErrorModule

Returns:

the short identifying name of this evaluation module

getDescription

public String getDescription()

Description copied from class: ErrorModule

Return the longer (single sentence) description of this evaluation module

Overrides:

getDescription in class ErrorModule

Returns:

the longer description of this module

getDefinition

public String getDefinition()

Description copied from class: ErrorModule

Return the mathematical formula that this evaluation module computes.

Overrides:

getDefinition in class ErrorModule

Returns:

the mathematical formula that this module computes.

calculateMeasure

public double[] calculateMeasure()
                          throws Exception

Description copied from class: ErrorModule

Calculate the measure that this module represents.

Overrides:

calculateMeasure in class ErrorModule

Returns:

the value of the measure for this module for each of the target(s).

Throws:

Exception - if the measure can't be computed for some reason.