biz.k11i.xgboost.tree

Class RegTreeImpl.Node

java.lang.Object

biz.k11i.xgboost.tree.RegTreeNode

biz.k11i.xgboost.tree.RegTreeImpl.Node

All Implemented Interfaces:

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()
boolean	is_leaf()
int	split_index()

Methods inherited from class java.lang.Object

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

Method Detail

is_leaf

public boolean is_leaf()

split_index

public int split_index()

Specified by:

split_index 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.

getParentIndex

public int getParentIndex()

Specified by:

getParentIndex in class RegTreeNode

Returns:

Index of node's parent

getLeftChildIndex

public int getLeftChildIndex()

Specified by:

getLeftChildIndex in class RegTreeNode

Returns:

Index of node's left child node

getRightChildIndex

public int getRightChildIndex()

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 class RegTreeNode

Returns:

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