biz.k11i.xgboost.tree

Class RegTreeNodeStat

java.lang.Object

biz.k11i.xgboost.tree.RegTreeNodeStat

All Implemented Interfaces:

ai.h2o.algos.tree.INodeStat, java.io.Serializable

public class RegTreeNodeStat
extends java.lang.Object
implements ai.h2o.algos.tree.INodeStat, java.io.Serializable

Statistics for node in tree.

See Also:

Serialized Form

Method Summary

Methods

Modifier and Type	Method and Description
float	getBaseWeight()
float	getCover()
float	getGain()
int	getLeafCount()

Methods inherited from class java.lang.Object

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

Method Detail

getGain

public float getGain()

Specified by:

getGain in interface ai.h2o.algos.tree.INodeStat

Returns:

loss chg caused by current split

getCover

public float getCover()

Specified by:

getCover in interface ai.h2o.algos.tree.INodeStat

Returns:

sum of hessian values, used to measure coverage of data

getBaseWeight

public float getBaseWeight()

Specified by:

getBaseWeight in interface ai.h2o.algos.tree.INodeStat

Returns:

weight of current node

getLeafCount

public int getLeafCount()

Specified by:

getLeafCount in interface ai.h2o.algos.tree.INodeStat

Returns:

number of child that is leaf node known up to now