selection.cc

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/* FEAT
copyright 2017 William La Cava
license: GNU/GPL v3
*/
 
#include "selection.h"
 
namespace FT{
namespace Sel{
       
Selection::Selection()
{
    this->type = "lexicase";
    this->survival = false;
    this->set_operator();
}
 
Selection::Selection(string type, bool survival)
{
    this->type = type;
    this->survival = survival;
    this->set_operator();
}
 
void Selection::set_operator()
{
    if (this->type == "lexicase")
        pselector = std::make_shared<Lexicase>(survival); 
    else if (this->type == "fair_lexicase")
        pselector = std::make_shared<FairLexicase>(survival);
    else if (this->type == "nsga2")
        pselector = std::make_shared<NSGA2>(survival);
    else if (this->type == "tournament")
        pselector = std::make_shared<Tournament>(survival);
    else if (this->type == "offspring")    // offspring survival
        pselector = std::make_shared<Offspring>(survival);
    else if (this->type == "random")    // offspring survival
        pselector = std::make_shared<Random>(survival);
    else if (this->type == "simanneal")    // offspring survival
        pselector = std::make_shared<SimAnneal>(survival);
    else
        WARN("Undefined Selection Operator " + this->type + "\n");
        
}
 
Selection::~Selection(){}
 
string Selection::get_type(){ return pselector->name; }
 
void Selection::set_type(string in){ type = in; set_operator();}
 
vector<size_t> Selection::select(Population& pop,  
        const Parameters& params, const Data& d)
{       
    return pselector->select(pop, params, d);
}
 
vector<size_t> Selection::survive(Population& pop, 
        const Parameters& params, const Data& d)
{       
    return pselector->survive(pop, params, d);
}
 
}
}