Brush::Pop::Population< T > Class Template Reference

#include <population.h>

Collaboration diagram for Brush::Pop::Population< T >:

Classes
struct	SameFitComplexity
	check for same fitness and complexity to filter uniqueness. More...
struct	SortComplexity
	Sort each island in increasing complexity. This is not thread safe. I should set complexities of the whole population before calling it, and use get_complexity instead. More...
struct	SortLinearComplexity

Public Member Functions
	Population ()
	~Population ()
void	init (SearchSpace &ss, const Parameters &params)
	initialize population of programs with a starting model and/or from file
void	init (vector< Individual< T > > &individuals, const Parameters &params)
void	save (string filename)
void	load (string filename)
int	size ()
	returns population size (the effective size of the individuals)
vector< size_t >	get_island_indexes (int island)
void	add_offspring_indexes (int island)
	update individual vector size, distributing the expressions in num_islands
void	update (vector< vector< size_t > > survivors)
	reduce programs to the indices in survivors. Not thread safe,as it removes elements
const Individual< T > &	operator[] (size_t i) const
	setting and getting from individuals vector (will ignore islands)
const Individual< T > &	operator[] (size_t i)
string	print_models (string sep="\n")
	return population equations.
vector< vector< size_t > >	sorted_front (unsigned rank=1)
	return complexity-sorted Pareto front indices for each island
vector< size_t >	hall_of_fame (unsigned rank=1)
void	migrate ()

Public Attributes
size_t	pop_size
int	num_islands
float	mig_prob
bool	linear_complexity
	Indicates if the user set linear_complexity instead of recursive complexity.
vector< std::shared_ptr< Individual< T > > >	individuals
vector< vector< size_t > >	island_indexes

Detailed Description

template<ProgramType T>
class Brush::Pop::Population< T >

Definition at line 12 of file population.h.

Constructor & Destructor Documentation

Population()

template<ProgramType T>

Brush::Pop::Population< T >::Population

(

)

Definition at line 7 of file population.cpp.

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~Population()

template<ProgramType T>

Brush::Pop::Population< T >::~Population ( )

inline

Definition at line 23 of file population.h.

Member Function Documentation

add_offspring_indexes()

template<ProgramType T>

void Brush::Pop::Population< T >::add_offspring_indexes

(

int

island

)

update individual vector size, distributing the expressions in num_islands

update individual vector size and island indexes

Definition at line 138 of file population.cpp.

get_island_indexes()

template<ProgramType T>

vector< size_t > Brush::Pop::Population< T >::get_island_indexes ( int island )

inline

Definition at line 39 of file population.h.

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hall_of_fame()

template<ProgramType T>

vector< size_t > Brush::Pop::Population< T >::hall_of_fame

(

unsigned

rank = 1

)

Definition at line 267 of file population.cpp.

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init() [1/2]

template<ProgramType T>

void Brush::Pop::Population< T >::init	(	SearchSpace &	ss,
		const Parameters &	params )

initialize population of programs with a starting model and/or from file

Definition at line 62 of file population.cpp.

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init() [2/2]

template<ProgramType T>

void Brush::Pop::Population< T >::init	(	vector< Individual< T > > &	individuals,
		const Parameters &	params )

Definition at line 18 of file population.cpp.

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load()

template<ProgramType T>

void Brush::Pop::Population< T >::load

(

string

filename

)

Definition at line 117 of file population.cpp.

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migrate()

template<ProgramType T>

void Brush::Pop::Population< T >::migrate

(

)

Definition at line 327 of file population.cpp.

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operator[]() [1/2]

template<ProgramType T>

const Individual< T > & Brush::Pop::Population< T >::operator[] ( size_t i )

inline

Definition at line 49 of file population.h.

operator[]() [2/2]

template<ProgramType T>

const Individual< T > & Brush::Pop::Population< T >::operator[] ( size_t i ) const

inline

setting and getting from individuals vector (will ignore islands)

Definition at line 48 of file population.h.

print_models()

template<ProgramType T>

string Brush::Pop::Population< T >::print_models

(

string

sep = "\n"

)

return population equations.

Definition at line 212 of file population.cpp.

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save()

template<ProgramType T>

void Brush::Pop::Population< T >::save

(

string

filename

)

Definition at line 101 of file population.cpp.

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size()

template<ProgramType T>

int Brush::Pop::Population< T >::size ( )

inline

returns population size (the effective size of the individuals)

Definition at line 37 of file population.h.

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sorted_front()

template<ProgramType T>

vector< vector< size_t > > Brush::Pop::Population< T >::sorted_front

(

unsigned

rank = 1

)

return complexity-sorted Pareto front indices for each island

Definition at line 232 of file population.cpp.

update()

template<ProgramType T>

void Brush::Pop::Population< T >::update

(

vector< vector< size_t > >

survivors

)

reduce programs to the indices in survivors. Not thread safe,as it removes elements

Definition at line 161 of file population.cpp.

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Member Data Documentation

individuals

template<ProgramType T>

vector<std::shared_ptr<Individual<T> > > Brush::Pop::Population< T >::individuals

Definition at line 19 of file population.h.

island_indexes

template<ProgramType T>

vector<vector<size_t> > Brush::Pop::Population< T >::island_indexes

Definition at line 20 of file population.h.

linear_complexity

template<ProgramType T>

bool Brush::Pop::Population< T >::linear_complexity

Indicates if the user set linear_complexity instead of recursive complexity.

Definition at line 17 of file population.h.

mig_prob

template<ProgramType T>

float Brush::Pop::Population< T >::mig_prob

Definition at line 16 of file population.h.

num_islands

template<ProgramType T>

int Brush::Pop::Population< T >::num_islands

Definition at line 15 of file population.h.

pop_size

template<ProgramType T>

size_t Brush::Pop::Population< T >::pop_size

Definition at line 14 of file population.h.

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

• population.h
• population.cpp