Class RegTreeNodeStat

java.lang.Object

biz.k11i.xgboost.tree.RegTreeNodeStat

All Implemented Interfaces:

INodeStat, Serializable

public class RegTreeNodeStat
extends Object
implements INodeStat, Serializable

Statistics for node in tree.

See Also:

• Serialized Form

Method Summary

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

Methods inherited from class Object

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

Method Details

getWeight

public float getWeight()

Specified by:

getWeight in interface INodeStat

getGain

public float getGain()

Returns:

loss chg caused by current split

getCover

public float getCover()

Returns:

sum of hessian values, used to measure coverage of data

getBaseWeight

public float getBaseWeight()

Returns:

weight of current node

getLeafCount

public int getLeafCount()

Returns:

number of child that is leaf node known up to now