EO< F > Class Template Reference

EO is a base class for evolvable objects, that is, the subjects of evolution. More...

#include <EO.h>

Inheritance diagram for EO< F >:


Public Types
typedef F	Fitness
typedef Traits	fitness_traits
typedef Traits::storage_type	storage_type
typedef Traits::performance_type	performance_type
typedef Traits::worth_type	worth_type
Public Member Functions
	EO ()
	Default constructor.
virtual	~EO ()
	Virtual dtor.
Fitness	fitness () const
	Return fitness value.
void	invalidate ()
void	fitness (const Fitness &_fitness)
	Set fitness.
bool	invalid () const
	Return true If fitness value is invalid, false otherwise.
bool	operator< (const EO &_eo2) const
	Returns true if.
bool	operator> (const EO &_eo2) const
	EO ()
void	fitness (performance_type perf)
void	performance (performance_type perf)
performance_type	performance (void) const
void	worth (worth_type worth)
worth_type	worth (void) const
worth_type	fitness (void) const
void	invalidate (void)
void	invalidate_worth (void)
bool	operator< (const EO< Fitness, Traits > &other) const
bool	operator> (const EO< Fitness, Traits > &other) const

virtual std::string	className () const
	Return the class id.
virtual void	readFrom (std::istream &_is)
	Read object.
virtual void	printOn (std::ostream &_os) const
	Write object.
Private Attributes
Fitness	repFitness
bool	invalidFitness
bool	valid_performance
bool	valid_worth
storage_type	rep_fitness

Detailed Description

template<class F>
class EO< F >

EO is a base class for evolvable objects, that is, the subjects of evolution.

EOs have only got a fitness, which at the same time needs to be only an object with the operation less than (<) defined. Fitness says how good is the object; evolution or change of these objects is left to the genetic operators. A fitness less than another means a worse fitness, in whatever the context; thus, fitness is always maximized; although it can be minimized with a proper definition of the < operator. The fitness object must have, besides an void ctor, a copy ctor.

Definition at line 44 of file EO.h.

Constructor & Destructor Documentation

template<class F>

EO< F >::EO ( ) [inline]

Default constructor.

Fitness must have a ctor which takes 0 as a value; we can not use void ctors here since default types like float have no void initializer. VC++ allows it, but gcc does not

Definition at line 54 of file EO.h.

Member Function Documentation

template<class F>

void EO< F >::fitness ( const Fitness & _fitness ) [inline]

Set fitness.

At the same time, validates it.

Parameters:

_fitness

New fitness value.

Definition at line 72 of file EO.h.

template<class F>

bool EO< F >::invalid ( ) const [inline]

Return true If fitness value is invalid, false otherwise.

Returns:: true If fitness is invalid.

Reimplemented in PO< F >, and PO< FitT >.

Definition at line 81 of file EO.h.

Referenced by EO< PyFitness >::fitness(), RoyalRoad< EOT >::operator()(), eoOneMaxEvalFunc< EOT >::operator()(), eoOneFifthMutation< EOT >::operator()(), eoEvalFuncPtr< EOT, FitT, FunctionArg >::operator()(), eoEvalFuncCounter< Dummy >::operator()(), and EO< PyFitness >::printOn().

template<class F>

bool EO< F >::operator< ( const EO< F > & _eo2 ) const [inline]

Returns true if.

Returns:: true if the fitness is higher

Definition at line 86 of file EO.h.

Referenced by PyEO::operator<().

template<class F>

virtual std::string EO< F >::className ( void ) const [inline, virtual]

Return the class id.

Returns:: the class name as a std::string

Implements eoObject.

Reimplemented in Chrom, eoVirus< FitT >, eoEsFull< Fit >, eoEsSimple< Fit >, eoEsStdev< Fit >, eoReal< FitT >, eoRealParticle< FitT >, eoBit< FitT >, eoString< fitnessT >, PO< F >, eoOneMax< FitT >, and PO< FitT >.

Definition at line 95 of file EO.h.

template<class F>

virtual void EO< F >::readFrom ( std::istream & _is ) [inline, virtual]

Read object.

\ Calls base class, just in case that one had something to do. The read and print methods should be compatible and have the same format. In principle, format is "plain": they just print a number

Parameters:

_is

a std::istream.

Exceptions:

runtime_std::exception

If a valid object can't be read.

Implements eoPersistent.

Reimplemented in EoSym< Fitness >, eoVirus< FitT >, eoVector< FitT, GeneType >, eoEsFull< Fit >, eoEsSimple< Fit >, eoEsStdev< Fit >, eoBit< FitT >, eoExternalEO< Fit, External >, PO< F >, eoVector< Fit, double >, eoVector< FitT, double >, eoVector< FitT, bool >, and PO< FitT >.