Package weka.classifiers.trees.ht

Class LeafNode

java.lang.Object

weka.classifiers.trees.ht.HNode

weka.classifiers.trees.ht.LeafNode

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ActiveHNode, InactiveHNode

public class LeafNode
extends HNode
implements 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
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, String parentBranch)	Construct a leaf node with the given actual node, parent and parent branch

Method Summary

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 Details

m_theNode

public HNode m_theNode

The actual node for this leaf

m_parentNode

public SplitNode m_parentNode

Parent split node

m_parentBranch

public String m_parentBranch

Parent branch leading to this node

Constructor Details

LeafNode

public LeafNode()

Construct an empty leaf node

LeafNode

public LeafNode(HNode node,
 SplitNode parentNode,
 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 Details

updateNode

public void updateNode(Instance inst)
                throws 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:

Exception - if a problem occurs