RegTreeNode

java.lang.Object
- biz.k11i.xgboost.tree.RegTreeNode

All Implemented Interfaces:

INode<FVec>, java.io.Serializable

Direct Known Subclasses:

RegTreeImpl.Node
```
public abstract class RegTreeNode
extends java.lang.Object
implements INode<FVec>, java.io.Serializable
```
See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

RegTreeNode()

Method Summary

All Methods Instance Methods Abstract Methods
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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ai.h2o.algos.tree.INode
isLeaf, next

- Constructor Detail
  - RegTreeNode
```
public RegTreeNode()
```
- Method Detail
  - 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