org.apache.mahout.classifier.df.node

Class CategoricalNode

java.lang.Object

org.apache.mahout.classifier.df.node.Node

org.apache.mahout.classifier.df.node.CategoricalNode

All Implemented Interfaces:

org.apache.hadoop.io.Writable

public class CategoricalNode
extends Node

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.mahout.classifier.df.node.Node

Node.Type

Constructor Summary

Constructors

Constructor and Description
CategoricalNode()
CategoricalNode(int attr, double[] values, Node[] childs)

Method Summary

Methods

Modifier and Type	Method and Description
double	classify(Instance instance) predicts the label for the instance
boolean	equals(Object obj)
protected String	getString()
protected Node.Type	getType()
int	hashCode()
long	maxDepth()
long	nbNodes()
void	readFields(DataInput in)
protected void	writeNode(DataOutput out)

Methods inherited from class org.apache.mahout.classifier.df.node.Node

read, toString, write

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CategoricalNode

public CategoricalNode()

CategoricalNode

public CategoricalNode(int attr,
               double[] values,
               Node[] childs)

Method Detail

classify

public double classify(Instance instance)

Description copied from class: Node

predicts the label for the instance

Specified by:

classify in class Node

Returns:

-1 if the label cannot be predicted

maxDepth

public long maxDepth()

Specified by:

maxDepth in class Node

Returns:

the maximum depth of the tree

nbNodes

public long nbNodes()

Specified by:

nbNodes in class Node

Returns:

the total number of nodes of the tree

getType

protected Node.Type getType()

Specified by:

getType in class Node

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getString

protected String getString()

Specified by:

getString in class Node

readFields

public void readFields(DataInput in)
                throws IOException

Throws:

IOException

writeNode

protected void writeNode(DataOutput out)
                  throws IOException

Specified by:

writeNode in class Node

Throws:

IOException