OpenCV: cv::ml::DTrees::Split Class Reference

| OpenCV 3.4.2 Open Source Computer Vision

Public Member Functions | Public Attributes | List of all members
cv::ml::DTrees::Split Class Reference

The class represents split in a decision tree. More...

`#include "ml.hpp"`

## Public Member Functions
| Split ()

## Public Attributes
float | c
bool | inversed
int | next
| Index of the next split in the list of splits for the node. More...
float | quality
| The split quality, a positive number. It is used to choose the best split. More...
int | subsetOfs
int | varIdx
| Index of variable on which the split is created. More...

## Detailed Description

The class represents split in a decision tree.

## Constructor & Destructor Documentation

## ◆ Split()

cv::ml::DTrees::Split::Split | ( |  | ) |

## Member Data Documentation

## ◆ c

float cv::ml::DTrees::Split::c

The threshold value in case of split on an ordered variable. The rule is:

if var_value < c
then next_node <- left
else next_node <- right

## ◆ inversed

bool cv::ml::DTrees::Split::inversed

If true, then the inverse split rule is used (i.e. left and right branches are exchanged in the rule expressions below).

## ◆ next

int cv::ml::DTrees::Split::next

Index of the next split in the list of splits for the node.

## ◆ quality

float cv::ml::DTrees::Split::quality

The split quality, a positive number. It is used to choose the best split.

## ◆ subsetOfs

int cv::ml::DTrees::Split::subsetOfs

Offset of the bitset used by the split on a categorical variable. The rule is:

if bitset[var_value] == 1
then next_node <- left
else next_node <- right

## ◆ varIdx

int cv::ml::DTrees::Split::varIdx

Index of variable on which the split is created.

The documentation for this class was generated from the following file:

- ml/include/opencv2/ml.hpp