biz.k11i.xgboost.tree

Class RegTreeImpl.Node

java.lang.Object

biz.k11i.xgboost.tree.RegTreeNode

biz.k11i.xgboost.tree.RegTreeImpl.Node

All Implemented Interfaces:

ai.h2o.algos.tree.INode<FVec>, java.io.Serializable

Enclosing class:

RegTreeImpl

public static class RegTreeImpl.Node
extends RegTreeNode
implements java.io.Serializable

See Also:

Serialized Form

Method Summary

Methods

Modifier and Type	Method and Description
int	cdefault()
boolean	default_left()
float	getLeafValue()
int	getLeftChildIndex()
int	getParentIndex()
int	getRightChildIndex()
float	getSplitCondition()
int	getSplitIndex()
boolean	isLeaf()
int	next(FVec feat)

Methods inherited from class java.lang.Object

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

Method Detail

isLeaf

public boolean isLeaf()

Specified by:

isLeaf in interface ai.h2o.algos.tree.INode<FVec>

getSplitIndex

public int getSplitIndex()

Specified by:

getSplitIndex in interface ai.h2o.algos.tree.INode<FVec>

Specified by:

getSplitIndex in class RegTreeNode

Returns:

Index of domain category used to split on the node

cdefault

public int cdefault()

default_left

public boolean default_left()

Specified by:

default_left in class RegTreeNode

Returns:

True if default direction for unrecognized values is the LEFT child, otherwise false.

next

public int next(FVec feat)

Specified by:

next in interface ai.h2o.algos.tree.INode<FVec>

getParentIndex

public int getParentIndex()

Specified by:

getParentIndex in class RegTreeNode

Returns:

Index of node's parent

getLeftChildIndex

public int getLeftChildIndex()

Specified by:

getLeftChildIndex in interface ai.h2o.algos.tree.INode<FVec>

Specified by:

getLeftChildIndex in class RegTreeNode

Returns:

Index of node's left child node

getRightChildIndex

public int getRightChildIndex()

Specified by:

getRightChildIndex in interface ai.h2o.algos.tree.INode<FVec>

Specified by:

getRightChildIndex in class RegTreeNode

Returns:

Index of node's right child node

getSplitCondition

public float getSplitCondition()

Specified by:

getSplitCondition in class RegTreeNode

Returns:

Split condition on the node, if the node is a split node. Leaf nodes have this value set to NaN

getLeafValue

public float getLeafValue()

Specified by:

getLeafValue in interface ai.h2o.algos.tree.INode<FVec>

Specified by:

getLeafValue in class RegTreeNode

Returns:

Predicted value on the leaf node, if the node is leaf. Otherwise NaN