FT::Pop::Op::NodeSplit< T > Class Template Reference
#include <n_split.h>
Inheritance diagram for FT::Pop::Op::NodeSplit< T >:
Collaboration diagram for FT::Pop::Op::NodeSplit< T >:
Public Member Functions | |
| NodeSplit () | |
| void | set_threshold (ArrayXf &x, VectorXf &y, bool classification) |
| Uses a heuristic to set a splitting threshold. More... | |
| float | gain (const VectorXf &lsplit, const VectorXf &rsplit, bool classification=false, vector< float > unique_classes=vector< float >()) |
| returns the gain of a split More... | |
| float | gini_impurity_index (const VectorXf &classes, vector< float > uc) |
| gini impurity of classes in classes More... | |
| void | evaluate (const Data &data, State &state) |
| Evaluates the node and updates the state states. More... | |
| void | eval_eqn (State &state) |
| Evaluates the node symbolically. More... | |
| NodeSplit () | |
| NodeSplit () | |
 Public Member Functions inherited from FT::Pop::Op::NodeTrain | |
| bool | isNodeTrain () |
| Public Member Functions inherited from FT::Pop::Op::Node | |
| Node () | |
| virtual | ~Node () |
| unsigned int | total_arity () |
| ArrayXf | limited (ArrayXf x) |
| limits node output to be between MIN_FLT and MAX_FLT More... | |
| void | eval_complexity (map< char, vector< unsigned int >> &cstate) |
| evaluates complexity of this node in the context of its child nodes. More... | |
| void | eval_complexity_db (map< char, vector< string >> &cstate) |
| evaluates complexity of this node in the context of its child nodes. More... | |
| virtual bool | isNodeDx () |
| check of node type More... | |
| std::unique_ptr< Node > | clone () const |
| makes a unique copy of this node More... | |
| std::unique_ptr< Node > | rnd_clone () const |
| makes a randomized unique copy ofnode More... | |
Public Attributes | |
| float | threshold |
| Public Attributes inherited from FT::Pop::Op::NodeTrain | |
| bool | train |
| Public Attributes inherited from FT::Pop::Op::Node | |
| string | name |
| node type More... | |
| string | variable_name |
| variable name, if any More... | |
| char | otype |
| output type More... | |
| std::map< char, unsigned int > | arity |
| arity of the operator More... | |
| int | complexity |
| complexity of node More... | |
| int | visits = 0 |
Protected Member Functions | |
| NodeSplit * | clone_impl () const override |
| NodeSplit * | rnd_clone_impl () const override |
Detailed Description
Constructor & Destructor Documentation
◆ NodeSplit() [1/3]
template<class T >
| FT::Pop::Op::NodeSplit< T >::NodeSplit | ( | ) |
◆ NodeSplit() [2/3]
| FT::Pop::Op::NodeSplit< float >::NodeSplit | ( | ) |
Definition at line 12 of file n_split.cc.
◆ NodeSplit() [3/3]
| FT::Pop::Op::NodeSplit< int >::NodeSplit | ( | ) |
Definition at line 24 of file n_split.cc.
Member Function Documentation
◆ clone_impl()
template<class T >
|
overrideprotectedvirtual |
Implements FT::Pop::Op::Node.
Definition at line 95 of file n_split.cc.
◆ eval_eqn()
template<class T >
|
virtual |
Evaluates the node symbolically.
Implements FT::Pop::Op::Node.
Definition at line 84 of file n_split.cc.
◆ evaluate()
template<class T >
|
virtual |
Evaluates the node and updates the state states.
Implements FT::Pop::Op::Node.
Definition at line 36 of file n_split.cc.
◆ gain()
template<class T >
| float FT::Pop::Op::NodeSplit< T >::gain | ( | const VectorXf & | lsplit, |
| const VectorXf & | rsplit, | ||
| bool | classification = false, |
||
| vector< float > | unique_classes = vector<float>() |
||
| ) |
returns the gain of a split
Definition at line 180 of file n_split.cc.
◆ gini_impurity_index()
template<class T >
| float FT::Pop::Op::NodeSplit< T >::gini_impurity_index | ( | const VectorXf & | classes, |
| vector< float > | uc | ||
| ) |
gini impurity of classes in classes
Definition at line 206 of file n_split.cc.
◆ rnd_clone_impl()
template<class T >
|
overrideprotectedvirtual |
Implements FT::Pop::Op::Node.
Definition at line 99 of file n_split.cc.
◆ set_threshold()
template<class T >
| void FT::Pop::Op::NodeSplit< T >::set_threshold | ( | ArrayXf & | x, |
| VectorXf & | y, | ||
| bool | classification | ||
| ) |
Uses a heuristic to set a splitting threshold.
Definition at line 103 of file n_split.cc.
Member Data Documentation
◆ threshold
template<class T >
| float FT::Pop::Op::NodeSplit< T >::threshold |
The documentation for this class was generated from the following files:
