RegTreeNode

java.lang.Object

biz.k11i.xgboost.tree.RegTreeNode

All Implemented Interfaces:: INode<FVec>, Serializable

Direct Known Subclasses:: RegTreeImpl.Node

public abstract class RegTreeNode extends Object implements INode<FVec>, Serializable

See Also:

Constructor Summary

Constructors

Constructor

Description

RegTreeNode()
Method Summary

Modifier and Type

Method

Description

abstract boolean

default_left()

abstract float

getLeafValue()

abstract int

getLeftChildIndex()

abstract int

getParentIndex()

abstract int

getRightChildIndex()

abstract float

getSplitCondition()

abstract int

getSplitIndex()

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface INode
isLeaf, next

Constructor Details
- RegTreeNode
  
  public RegTreeNode()
Method Details
- getParentIndex
  
  public abstract int getParentIndex()
  
  Returns:
  
  Index of node's parent
- getLeftChildIndex
  
  public abstract int getLeftChildIndex()
  
  Specified by:
  
  getLeftChildIndex in interface INode<FVec>
  
  Returns:
  
  Index of node's left child node
- getRightChildIndex
  
  public abstract int getRightChildIndex()
  
  Specified by:
  
  getRightChildIndex in interface INode<FVec>
  
  Returns:
  
  Index of node's right child node
- getSplitCondition
  
  public abstract float getSplitCondition()
  
  Returns:
  
  Split condition on the node, if the node is a split node. Leaf nodes have this value set to NaN
- getLeafValue
  
  public abstract float getLeafValue()
  
  Specified by:
  
  getLeafValue in interface INode<FVec>
  
  Returns:
  
  Predicted value on the leaf node, if the node is leaf. Otherwise NaN
- default_left
  
  public abstract boolean default_left()
  
  Returns:
  
  True if default direction for unrecognized values is the LEFT child, otherwise false.
- getSplitIndex
  
  public abstract int getSplitIndex()
  
  Specified by:
  
  getSplitIndex in interface INode<FVec>
  
  Returns:
  
  Index of domain category used to split on the node