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## 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).

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