hex.tree.drf

Class TreeMeasuresCollector.TreeVotes

java.lang.Object

water.Iced

hex.tree.drf.TreeMeasuresCollector.TreeMeasures<TreeMeasuresCollector.TreeVotes>

hex.tree.drf.TreeMeasuresCollector.TreeVotes

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, water.Freezable

Enclosing class:

TreeMeasuresCollector

public static class TreeMeasuresCollector.TreeVotes
extends TreeMeasuresCollector.TreeMeasures<TreeMeasuresCollector.TreeVotes>

A class holding tree votes.

See Also:

Serialized Form

Field Summary

Fields inherited from class hex.tree.drf.TreeMeasuresCollector.TreeMeasures

_nrows, _ntrees

Constructor Summary

Constructors

Constructor and Description
TreeVotes(double[] votes, double[] nrows, int ntrees)
TreeVotes(int initialCapacity)

Method Summary

Modifier and Type	Method and Description
double	accuracy(int tidx) Returns accuracy per individual trees.
TreeMeasuresCollector.TreeVotes	append(double rightVotes, double allRows) Append a tree votes to a list of trees.
TreeMeasuresCollector.TreeVotes	append(TreeMeasuresCollector.TreeVotes tv)
double[]	imp(TreeMeasuresCollector.TreeVotes right) Compute variable importance with respect to given votes.
double[]	votes() Returns number of positive votes per tree.

Methods inherited from class hex.tree.drf.TreeMeasuresCollector.TreeMeasures

accuracy, npredictors, nrows

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeVotes

public TreeVotes(int initialCapacity)

TreeVotes

public TreeVotes(double[] votes,
                 double[] nrows,
                 int ntrees)

Method Detail

votes

public final double[] votes()

Returns number of positive votes per tree.

accuracy

public final double accuracy(int tidx)

Returns accuracy per individual trees.

Specified by:

accuracy in class TreeMeasuresCollector.TreeMeasures<TreeMeasuresCollector.TreeVotes>

imp

public final double[] imp(TreeMeasuresCollector.TreeVotes right)

Compute variable importance with respect to given votes. The given TreeMeasuresCollector.TreeVotes object represents correct votes. This object represents votes over shuffled data.

Specified by:

imp in class TreeMeasuresCollector.TreeMeasures<TreeMeasuresCollector.TreeVotes>

Parameters:

right - individual tree voters performed over not shuffled data.

Returns:

computed importance and standard deviation

append

public TreeMeasuresCollector.TreeVotes append(double rightVotes,
                                              double allRows)

Append a tree votes to a list of trees.

append

public TreeMeasuresCollector.TreeVotes append(TreeMeasuresCollector.TreeVotes tv)

Specified by:

append in class TreeMeasuresCollector.TreeMeasures<TreeMeasuresCollector.TreeVotes>