com.cloudera.oryx.app.rdf.tree

Class DecisionForest

java.lang.Object

com.cloudera.oryx.app.rdf.tree.DecisionForest

All Implemented Interfaces:

TreeBasedClassifier, Serializable

public final class DecisionForest
extends Object
implements TreeBasedClassifier

An ensemble classifier based on many DecisionTrees.

See Also:

DecisionTree, Serialized Form

Constructor Summary

Constructors

Constructor and Description
DecisionForest(DecisionTree[] trees, double[] weights, double[] featureImportances)

Method Summary

Modifier and Type	Method and Description
double[]	getFeatureImportances()
DecisionTree[]	getTrees()
double[]	getWeights()
Prediction	predict(Example test)
String	toString()
void	update(Example train) Requests that the implementation update its internal state to reflect a new Example.

Methods inherited from class java.lang.Object

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

Constructor Detail

DecisionForest

public DecisionForest(DecisionTree[] trees,
                      double[] weights,
                      double[] featureImportances)

Method Detail

getTrees

public DecisionTree[] getTrees()

Returns:

DecisionTrees in the ensemble forest

getWeights

public double[] getWeights()

getFeatureImportances

public double[] getFeatureImportances()

predict

public Prediction predict(Example test)

Specified by:

predict in interface TreeBasedClassifier

Parameters:

test - example whose target value is to be predicated

Returns:

a Prediction of the target value

update

public void update(Example train)

Description copied from interface: TreeBasedClassifier

Requests that the implementation update its internal state to reflect a new Example. In this case, the Example should carry a target value to learn from.

Specified by:

update in interface TreeBasedClassifier

Parameters:

train - new training example

toString

public String toString()

Overrides:

toString in class Object