RegTree

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

RegTreeImpl
```
public interface RegTree
extends java.io.Serializable
```
Regression tree.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`getLeafIndex(FVec feat)`	Retrieves nodes from root to leaf and returns leaf index.
`void`	`getLeafPath(FVec feat, java.lang.StringBuilder sb)`	Retrieves nodes from root to leaf and returns path to leaf.
`float`	`getLeafValue(FVec feat, int root_id)`	Retrieves nodes from root to leaf and returns leaf value.
`RegTreeNode[]`	`getNodes()`
`RegTreeNodeStat[]`	`getStats()`

- Method Detail
  - getLeafIndex
```
int getLeafIndex(FVec feat)
```
    Retrieves nodes from root to leaf and returns leaf index.
    
    Parameters:
    
    feat - feature vector
    
    Returns:
    
    leaf index
  - getLeafPath
```
void getLeafPath(FVec feat,
                 java.lang.StringBuilder sb)
```
    Retrieves nodes from root to leaf and returns path to leaf.
    
    Parameters:
    
    feat - feature vector
    
    sb - output param, will write path path to leaf into this buffer
  - getLeafValue
```
float getLeafValue(FVec feat,
                   int root_id)
```
    Retrieves nodes from root to leaf and returns leaf value.
    
    Parameters:
    
    feat - feature vector
    
    root_id - starting root index
    
    Returns:
    
    leaf value
  - getNodes
```
RegTreeNode[] getNodes()
```
    Returns:
    
    Tree's nodes
  - getStats
```
RegTreeNodeStat[] getStats()
```
    Returns:
    
    Tree's nodes stats