LeafNode

java.lang.Object
- weka.classifiers.trees.ht.HNode
- - weka.classifiers.trees.ht.LeafNode

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ActiveHNode, InactiveHNode
```
public class LeafNode
extends HNode
implements java.io.Serializable
```
Leaf node in a HoeffdingTree

Version:

$Revision: 9705 $

Author:

Richard Kirkby (rkirkby@cs.waikato.ac.nz), Mark Hall (mhall{[at]}pentaho{[dot]}com)

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`java.lang.String`	`m_parentBranch`	Parent branch leading to this node
`SplitNode`	`m_parentNode`	Parent split node
`HNode`	`m_theNode`	The actual node for this leaf

Fields inherited from class weka.classifiers.trees.ht.HNode
m_classDistribution

Constructor Summary

Constructors
Constructor	Description
`LeafNode()`	Construct an empty leaf node
`LeafNode(HNode node, SplitNode parentNode, java.lang.String parentBranch)`	Construct a leaf node with the given actual node, parent and parent branch

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

void updateNode(Instance inst)
Update the node with the supplied instance
- Methods inherited from class weka.classifiers.trees.ht.HNode
  classDistributionIsPure, getDistribution, graphTree, installNodeNums, isLeaf, leafForInstance, numEntriesInClassDistribution, toString, totalWeight, updateDistribution
- Methods inherited from class java.lang.Object
  equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - m_theNode
```
public HNode m_theNode
```
    The actual node for this leaf
  - m_parentNode
```
public SplitNode m_parentNode
```
    Parent split node
  - m_parentBranch
```
public java.lang.String m_parentBranch
```
    Parent branch leading to this node
- Constructor Detail
  - LeafNode
```
public LeafNode()
```
    Construct an empty leaf node
  - LeafNode
```
public LeafNode(HNode node,
                SplitNode parentNode,
                java.lang.String parentBranch)
```
    Construct a leaf node with the given actual node, parent and parent branch
    
    Parameters:
    
    node - the actual node at this leaf
    
    parentNode - the parent split node
    
    parentBranch - the branch leading to this node
- Method Detail
  - updateNode
```
public void updateNode(Instance inst)
                throws java.lang.Exception
```
    Description copied from class: HNode
    
    Update the node with the supplied instance
    
    Specified by:
    
    updateNode in class HNode
    
    Parameters:
    
    inst - the instance to update with
    
    Throws:
    
    java.lang.Exception - if a problem occurs