weka.classifiers.rules.part

Class ClassifierDecList

java.lang.Object

weka.classifiers.rules.part.ClassifierDecList

All Implemented Interfaces:

java.io.Serializable, RevisionHandler

Direct Known Subclasses:

C45PruneableDecList, PruneableDecList

public class ClassifierDecList
extends java.lang.Object
implements java.io.Serializable, RevisionHandler

Class for handling a rule (partial tree) for a decision list.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ClassifierDecList(ModelSelection toSelectLocModel, int minNum) Constructor - just calls constructor of class DecList.

Method Summary

Modifier and Type	Method and Description
void	buildDecList(Instances data, boolean leaf) Builds the partial tree without hold out set.
void	buildRule(Instances data) Method for building a pruned partial tree.
int	chooseIndex() Method for choosing a subset to expand.
int	chooseLastIndex() Choose last index (ie.
double	classifyInstance(Instance instance) Classifies an instance.
void	cleanup(Instances justHeaderInfo) Cleanup in order to save memory.
double[]	distributionForInstance(Instance instance) Returns class probabilities for a weighted instance.
java.lang.String	getRevision() Returns the revision string.
java.lang.String	toString() Prints rules.
double	weight(Instance instance) Returns the weight a rule assigns to an instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassifierDecList

public ClassifierDecList(ModelSelection toSelectLocModel,
                         int minNum)

Constructor - just calls constructor of class DecList.

Method Detail

buildRule

public void buildRule(Instances data)
               throws java.lang.Exception

Method for building a pruned partial tree.

Throws:

java.lang.Exception - if something goes wrong

buildDecList

public void buildDecList(Instances data,
                         boolean leaf)
                  throws java.lang.Exception

Builds the partial tree without hold out set.

Throws:

java.lang.Exception - if something goes wrong

classifyInstance

public double classifyInstance(Instance instance)
                        throws java.lang.Exception

Classifies an instance.

Throws:

java.lang.Exception - if something goes wrong

distributionForInstance

public final double[] distributionForInstance(Instance instance)
                                       throws java.lang.Exception

Returns class probabilities for a weighted instance.

Throws:

java.lang.Exception - if something goes wrong

weight

public double weight(Instance instance)
              throws java.lang.Exception

Returns the weight a rule assigns to an instance.

Throws:

java.lang.Exception - if something goes wrong

cleanup

public final void cleanup(Instances justHeaderInfo)

Cleanup in order to save memory.

toString

public java.lang.String toString()

Prints rules.

Overrides:

toString in class java.lang.Object

chooseIndex

public final int chooseIndex()

Method for choosing a subset to expand.

chooseLastIndex

public final int chooseLastIndex()

Choose last index (ie. choose rule).

getRevision

public java.lang.String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Returns:

the revision