hex.tree.drf

Class TreeMeasuresCollector.TreeMeasures<T extends TreeMeasuresCollector.TreeMeasures>

java.lang.Object

water.Iced

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

All Implemented Interfaces:

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

Direct Known Subclasses:

TreeMeasuresCollector.TreeSSE, TreeMeasuresCollector.TreeVotes

Enclosing class:

TreeMeasuresCollector

public abstract static class TreeMeasuresCollector.TreeMeasures<T extends TreeMeasuresCollector.TreeMeasures>
extends water.Iced

A simple holder for set of different tree measurements.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected double[]	_nrows Number of processed row per tree.
protected int	_ntrees Actual number of trees which votes are stored in this object

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
double[]	accuracy()
abstract double	accuracy(int tidx) Returns a list of accuracies per tree.
abstract T	append(T t)
abstract double[]	imp(T right) Compute variable importance with respect to given votes.
int	npredictors() Returns number of voting predictors
double[]	nrows() Returns number of rows which were used during voting per individual tree.

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

Field Detail

_ntrees

protected int _ntrees

Actual number of trees which votes are stored in this object

_nrows

protected double[] _nrows

Number of processed row per tree.

Constructor Detail

TreeMeasures

public TreeMeasures(int initialCapacity)

TreeMeasures

public TreeMeasures(double[] nrows,
                    int ntrees)

Method Detail

nrows

public final double[] nrows()

Returns number of rows which were used during voting per individual tree.

npredictors

public final int npredictors()

Returns number of voting predictors

accuracy

public abstract double accuracy(int tidx)

Returns a list of accuracies per tree.

accuracy

public final double[] accuracy()

imp

public abstract double[] imp(T right)

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

Parameters:

right - individual tree measurements performed over not shuffled data.

Returns:

computed importance and standard deviation

append

public abstract T append(T t)