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Class weka.classifiers.j48.NoSplit 

java.lang.Object
   |
   +----weka.classifiers.j48.ClassifierSplitModel
           |
           +----weka.classifiers.j48.NoSplit
public final class NoSplit
extends ClassifierSplitModel
Class implementing a "no-split"-split.

Version:
$Revision: 1.3 $
Author:
Eibe Frank (eibe@cs.waikato.ac.nz)

Constructor Index

o NoSplit(Distribution)
Creates "no-split"-split for given distribution.

Method Index

o buildClassifier(Instances)
Creates a "no-split"-split for a given set of instances.
o leftSide(Instances)
Does nothing because no condition has to be satisfied.
o rightSide(int, Instances)
Does nothing because no condition has to be satisfied.
o sourceExpression(int, Instances)
Returns a string containing java source code equivalent to the test made at this node.
o weights(Instance)
Always returns null because there is only one subset.
o whichSubset(Instance)
Always returns 0 because only there is only one subset.

Constructors

o NoSplit 
 public NoSplit(Distribution distribution)
Creates "no-split"-split for given distribution.

Methods

o buildClassifier 
 public final void buildClassifier(Instances instances) throws Exception
Creates a "no-split"-split for a given set of instances.

Throws: Exception
if split can't be built successfully
Overrides:
buildClassifier in class ClassifierSplitModel
o whichSubset 
 public final int whichSubset(Instance instance)
Always returns 0 because only there is only one subset.

Overrides:
whichSubset in class ClassifierSplitModel
o weights 
 public final double[] weights(Instance instance)
Always returns null because there is only one subset.

Overrides:
weights in class ClassifierSplitModel
o leftSide 
 public final String leftSide(Instances instances)
Does nothing because no condition has to be satisfied.

Overrides:
leftSide in class ClassifierSplitModel
o rightSide 
 public final String rightSide(int index,
                               Instances instances)
Does nothing because no condition has to be satisfied.

Overrides:
rightSide in class ClassifierSplitModel
o sourceExpression 
 public final String sourceExpression(int index,
                                      Instances data)
Returns a string containing java source code equivalent to the test made at this node. The instance being tested is called "i".

Parameters:
index - index of the nominal value tested
data - the data containing instance structure info
Returns:
a value of type 'String'
Overrides:
sourceExpression in class ClassifierSplitModel 
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