Tree::Primitives::ERC< T > Class Template Reference

Ephemereal random constant (ERC) node class (Tree genotype). More...

#include <Terminal.h>

Inheritance diagram for Tree::Primitives::ERC< T >:

Public Member Functions
bool	initialize (StateP state)
	Initialize ERC value(s). More...
void	execute (void *result, Tree &tree)
	Execute the primitive. More...
void	setValue (void *value)
	Set terminal's value. More...
void	getValue (void *value)
	Get terminal's value. More...
PrimitiveP	copyWithNode (PrimitiveP primitive)
	Copy primitive (when copying a node, e.g. in crossover). The default behaviour just returns the same pointer (common primitives). (ERC's should override and make a new copy of the original object). More...
PrimitiveP	assignToNode (PrimitiveP primitive)
	Create (or choose) new unique ERC value and assign to tree node. More...
Public Member Functions inherited from Tree::Primitives::Primitive
virtual void	execute (void *result, Tree &tree)=0
	Execute the primitive. More...
virtual bool	initialize (StateP state)
	Initialize the primitive (default just sets the StateP pointer). More...
virtual void	setValue (void *value)
virtual void	getValue (void *value)
virtual PrimitiveP	copyWithNode (PrimitiveP)
	Copy primitive (when copying a node, e.g. in crossover). The default behaviour just returns the same pointer (common primitives). (ERC's should override and make a new copy of the original object). More...
virtual PrimitiveP	assignToNode (PrimitiveP)
	Assign primitive to node (when building a tree). The default behaviour just returns the same pointer (common primitives). ERC's should override and generate a new object with a new value. More...
void	getNextArgument (void *result, Tree &tree)
	Execute next child node's primitive (execute next subtree). More...
void	skipNextArgument (Tree &tree)
	Skip next child subtree (doesn't execute the subtree). More...
int	getNumberOfArguments ()
	Return primitive's number of arguments. More...
void	setName (std::string name)
	Set primitive's name. More...
std::string	getName ()
	Get primitive's name. More...
std::string	getComplementName ()
	Get complement's name. More...

Public Attributes
std::string	baseName_
T	value_
Public Attributes inherited from Tree::Primitives::Primitive
StateP	state_

Protected Attributes
std::vector< T > *	values_
Protected Attributes inherited from Tree::Primitives::Primitive
std::string	name_
int	nArguments_
std::string	complementName_

Detailed Description

template<class T>
class Tree::Primitives::ERC< T >

Ephemereal random constant (ERC) node class (Tree genotype).

ERC is a Primitive that represents a single value (of type double by default) that can assume values from the interval or from the set. Value of an ERC instance is defined once - when assigning to a node in a new tree. Only double-typed ERC instances may change value (with Gaussian mutation).

ERC's are distinguished from regular terminals by the prefix denoting their type, e.g.: D_3.14, I_5, B_true, C_a

Definition at line 85 of file Terminal.h.

Constructor & Destructor Documentation

ERC()

template<class T >

Tree::Primitives::ERC< T >::ERC ( )

inline

Definition at line 91 of file Terminal.h.

Member Function Documentation

assignToNode()

template<class T >

PrimitiveP Tree::Primitives::ERC< T >::assignToNode ( PrimitiveP  primitive )

inlinevirtual

Create (or choose) new unique ERC value and assign to tree node.

Parameters

pointer

to destination

Reimplemented from Tree::Primitives::Primitive.

Definition at line 161 of file Terminal.h.

copyWithNode()

template<class T >

PrimitiveP Tree::Primitives::ERC< T >::copyWithNode ( PrimitiveP  primitive )

inlinevirtual

Copy primitive (when copying a node, e.g. in crossover). The default behaviour just returns the same pointer (common primitives). (ERC's should override and make a new copy of the original object).

Parameters

sptr	to this primitive

Reimplemented from Tree::Primitives::Primitive.

Definition at line 152 of file Terminal.h.

execute()

template<class T >

void Tree::Primitives::ERC< T >::execute ( void *  result, Tree &  tree  )

inlinevirtual

Execute the primitive.

Function primitives gather arguments and return a value; terminal primitives return current value.

Implements Tree::Primitives::Primitive.

Definition at line 125 of file Terminal.h.

getValue()

template<class T >

void Tree::Primitives::ERC< T >::getValue ( void *  value )

inlinevirtual

Get terminal's value.

Parameters

pointer

to destination

Reimplemented from Tree::Primitives::Primitive.

Definition at line 146 of file Terminal.h.

initialize()

template<class T >

bool Tree::Primitives::ERC< T >::initialize ( StateP  state )

inlinevirtual

Initialize ERC value(s).

Read given values from config and store in vector.

Reimplemented from Tree::Primitives::Primitive.

Definition at line 104 of file Terminal.h.

setValue()

template<class T >

void Tree::Primitives::ERC< T >::setValue ( void *  value )

inlinevirtual

Set terminal's value.

Parameters

value

pointer to new value

Reimplemented from Tree::Primitives::Primitive.

Definition at line 136 of file Terminal.h.

Member Data Documentation

baseName_

template<class T >

std::string Tree::Primitives::ERC< T >::baseName_

Definition at line 88 of file Terminal.h.

value_

template<class T >

T Tree::Primitives::ERC< T >::value_

Definition at line 89 of file Terminal.h.

values_

template<class T >

std::vector<T>* Tree::Primitives::ERC< T >::values_

protected

Placeholder for predefined values that this type of ERC may assume. Each ERC instance holds only a single value.

Definition at line 177 of file Terminal.h.

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

• D:/Projekt/ECF_trunk/ECF/tree/Terminal.h