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Class weka.classifiers.j48.SplitCriterion 

java.lang.Object
   |
   +----weka.classifiers.j48.SplitCriterion
public abstract class SplitCriterion
extends Object
implements Serializable
Abstract class for computing splitting criteria with respect to distributions of class values.

Version:
$Revision: 1.2 $
Author:
Eibe Frank (eibe@cs.waikato.ac.nz)

Constructor Index

o SplitCriterion()

Method Index

o splitCritValue(Distribution)
Computes result of splitting criterion for given distribution.
o splitCritValue(Distribution, Distribution)
Computes result of splitting criterion for given training and test distributions.
o splitCritValue(Distribution, Distribution, Distribution)
Computes result of splitting criterion for given training and test distributions and given default distribution.
o splitCritValue(Distribution, Distribution, int)
Computes result of splitting criterion for given training and test distributions and given number of classes.

Constructors

o SplitCriterion 
 public SplitCriterion()

Methods

o splitCritValue 
 public double splitCritValue(Distribution bags)
Computes result of splitting criterion for given distribution.

Returns:
value of splitting criterion. 0 by default
o splitCritValue 
 public double splitCritValue(Distribution train,
                              Distribution test)
Computes result of splitting criterion for given training and test distributions.

Returns:
value of splitting criterion. 0 by default
o splitCritValue 
 public double splitCritValue(Distribution train,
                              Distribution test,
                              int noClassesDefault)
Computes result of splitting criterion for given training and test distributions and given number of classes.

Returns:
value of splitting criterion. 0 by default
o splitCritValue 
 public double splitCritValue(Distribution train,
                              Distribution test,
                              Distribution defC)
Computes result of splitting criterion for given training and test distributions and given default distribution.

Returns:
value of splitting criterion. 0 by default 
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