org.wdssii.decisiontree
Class AxialDecisionTree

java.lang.Object
  org.wdssii.decisiontree.AxialDecisionTree

All Implemented Interfaces:

Serializable, DecisionTree

public class AxialDecisionTree
extends Object
implements DecisionTree

A decision tree each of whose branches depends on only one attribute. An object of this class typically represents a learned decision tree although the object can be built directly by adding branches.

Author:

lakshman

See Also:

QuinlanC45AxialDecisionTreeCreator, Serialized Form

Field Summary

private int	defaultValue
private int	numAttributes
private int	numCategories
private AxialTreeNode	rootNode

Constructor Summary

AxialDecisionTree()

AxialDecisionTree(AxialTreeNode node, int defaultValue, int numAttributes, int numCategories)
Create with root node and the default category to be used if decision tree lands up in unlearned space.

Method Summary

int	classify(float[] data) classify input data
int	getDefaultValue()
int	getNumAttributes()
int	getNumCategories()
AxialTreeNode	getRootNode()
void	setDefaultValue(int defaultValue)
void	setNumAttributes(int numAttributes)
void	setNumCategories(int numCategories)
void	setRootNode(AxialTreeNode rootNode)
String	toJava()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

rootNode

private AxialTreeNode rootNode

defaultValue

private int defaultValue

numAttributes

private int numAttributes

numCategories

private int numCategories

Constructor Detail

AxialDecisionTree

public AxialDecisionTree()

AxialDecisionTree

public AxialDecisionTree(AxialTreeNode node,
                         int defaultValue,
                         int numAttributes,
                         int numCategories)

Create with root node and the default category to be used if decision tree lands up in unlearned space.

Method Detail

classify

public int classify(float[] data)

Description copied from interface: DecisionTree

classify input data

Specified by:

classify in interface DecisionTree

Returns:

category (0,1,2...,N-1) Will return -1 if decision tree is unable to classify data

toJava

public String toJava()

Specified by:

toJava in interface DecisionTree

Returns:

a Java code version of the decision tree.

getDefaultValue

public int getDefaultValue()

setDefaultValue

public void setDefaultValue(int defaultValue)

getRootNode

public AxialTreeNode getRootNode()

setRootNode

public void setRootNode(AxialTreeNode rootNode)

getNumAttributes

public int getNumAttributes()

setNumAttributes

public void setNumAttributes(int numAttributes)

getNumCategories

public int getNumCategories()

setNumCategories

public void setNumCategories(int numCategories)