weka.classifiers.rules.part

Class MakeDecList

java.lang.Object

weka.classifiers.rules.part.MakeDecList

All Implemented Interfaces:

java.io.Serializable, RevisionHandler

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

Class for handling a decision list.

Version:

$Revision: 14511 $

Author:

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

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MakeDecList(ModelSelection toSelectLocModel, double cf, int minNum) Constructor for dec list pruned using C4.5 pruning.
MakeDecList(ModelSelection toSelectLocModel, int minNum) Constructor for unpruned dec list.
MakeDecList(ModelSelection toSelectLocModel, int num, int minNum, int seed) Constructor for dec list pruned using hold-out pruning.

Method Summary

Modifier and Type	Method and Description
void	buildClassifier(Instances data) Builds dec list.
double	classifyInstance(Instance instance) Classifies an instance.
double[]	distributionForInstance(Instance instance) Returns the class distribution for an instance.
java.lang.String	getRevision() Returns the revision string.
int	numRules() Outputs the number of rules in the classifier.
java.lang.String	toString() Outputs the classifier into a string.

Methods inherited from class java.lang.Object

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

Constructor Detail

MakeDecList

public MakeDecList(ModelSelection toSelectLocModel,
                   int minNum)

Constructor for unpruned dec list.

MakeDecList

public MakeDecList(ModelSelection toSelectLocModel,
                   double cf,
                   int minNum)

Constructor for dec list pruned using C4.5 pruning.

MakeDecList

public MakeDecList(ModelSelection toSelectLocModel,
                   int num,
                   int minNum,
                   int seed)

Constructor for dec list pruned using hold-out pruning.

Method Detail

buildClassifier

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

Builds dec list.

Throws:

java.lang.Exception - if dec list can't be built successfully

toString

public java.lang.String toString()

Outputs the classifier into a string.

Overrides:

toString in class java.lang.Object

classifyInstance

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

Classifies an instance.

Throws:

java.lang.Exception - if instance can't be classified

distributionForInstance

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

Returns the class distribution for an instance.

Throws:

java.lang.Exception - if distribution can't be computed

numRules

public int numRules()

Outputs the number of rules in the classifier.

getRevision

public java.lang.String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Returns:

the revision