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 long[]	_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
TreeMeasuresCollector.TreeMeasures(int initialCapacity)
TreeMeasuresCollector.TreeMeasures(long[] nrows, int ntrees)

Method Summary

Methods

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
long[]	nrows() Returns number of rows which were used during voting per individual tree.

Methods inherited from class water.Iced

clone, frozenType, read_impl, read, readExternal, readJSON_impl, readJSON, toJsonString, write_impl, write, writeExternal, writeHTML_impl, writeHTML, writeJSON_impl, 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 long[] _nrows

Number of processed row per tree.

Constructor Detail

TreeMeasuresCollector.TreeMeasures

public TreeMeasuresCollector.TreeMeasures(int initialCapacity)

TreeMeasuresCollector.TreeMeasures

public TreeMeasuresCollector.TreeMeasures(long[] nrows,
                                  int ntrees)

Method Detail

nrows

public final long[] 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)