weka.attributeSelection
Class AttributeEvaluator

java.lang.Object
  |
  +--weka.attributeSelection.ASEvaluation
        |
        +--weka.attributeSelection.AttributeEvaluator

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ChiSquaredAttributeEval, GainRatioAttributeEval, InfoGainAttributeEval, OneRAttributeEval, ReliefFAttributeEval, SVMAttributeEval, SymmetricalUncertAttributeEval, UnsupervisedAttributeEvaluator

public abstract class AttributeEvaluator

extends ASEvaluation

Abstract attribute evaluator. Evaluate attributes individually.

Version:

$Revision: 1.7 $

Author:

Mark Hall (mhall@cs.waikato.ac.nz)

See Also:

Serialized Form

Constructor Summary

AttributeEvaluator()

Method Summary

abstract double

evaluateAttribute(int attribute) evaluates an individual attribute

Methods inherited from class weka.attributeSelection.ASEvaluation

buildEvaluator, forName, makeCopies, postProcess

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeEvaluator

public AttributeEvaluator()

Method Detail

evaluateAttribute

public abstract double evaluateAttribute(int attribute)
                                  throws java.lang.Exception

evaluates an individual attribute

Parameters:

attribute - the index of the attribute to be evaluated

Returns:

the "merit" of the attribute

Throws:

java.lang.Exception - if the attribute could not be evaluated