weka.classifiers.rules

Class DTNB.BackwardsWithDelete

java.lang.Object

weka.attributeSelection.ASSearch

weka.classifiers.rules.DTNB.BackwardsWithDelete

All Implemented Interfaces:

Serializable, RevisionHandler

Enclosing class:

DTNB

protected class DTNB.BackwardsWithDelete
extends ASSearch

Inner class implementing a special forwards search that looks for a good split of attributes between naive Bayes and the decision table. It also considers dropping attributes entirely from the model.

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BackwardsWithDelete()

Method Summary

Modifier and Type	Method and Description
protected int[]	attributeList(BitSet group) converts a BitSet into a list of attribute indexes
String	getRevision() Returns the revision string.
String	globalInfo()
int[]	search(ASEvaluation eval, Instances data) Searches the attribute subset/ranking space.
String	toString()

Methods inherited from class weka.attributeSelection.ASSearch

forName, makeCopies

Methods inherited from class java.lang.Object

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

Constructor Detail

BackwardsWithDelete

protected BackwardsWithDelete()

Method Detail

globalInfo

public String globalInfo()

toString

public String toString()

Overrides:

toString in class Object

search

public int[] search(ASEvaluation eval,
                    Instances data)
             throws Exception

Description copied from class: ASSearch

Searches the attribute subset/ranking space.

Specified by:

search in class ASSearch

Parameters:

eval - the attribute evaluator to guide the search

data - the training instances.

Returns:

an array (not necessarily ordered) of selected attribute indexes

Throws:

Exception - if the search can't be completed

attributeList

protected int[] attributeList(BitSet group)

converts a BitSet into a list of attribute indexes

Parameters:

group - the BitSet to convert

Returns:

an array of attribute indexes

getRevision

public String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Overrides:

getRevision in class ASSearch

Returns:

the revision