weka.classifiers.rules.part
Class ClassifierDecList

java.lang.Object
  |
  +--weka.classifiers.rules.part.ClassifierDecList

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

C45PruneableDecList, PruneableDecList

public class ClassifierDecList

extends java.lang.Object

implements java.io.Serializable

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

Version:

$Revision: 1.9 $

Author:

Eibe Frank (eibe@cs.waikato.ac.nz)

See Also:

Serialized Form

Constructor Summary

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

Method Summary

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	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).