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#ifndef CONSTRAINED_DBETA
#define CONSTRAINED_DBETA
#include "projector.hpp"
namespace opt_utilities
{
template <typename T>
class constrained_dbeta
:public model<std::vector<T>,std::vector<T>,std::vector<T> >
{
public:
constrained_dbeta()
{
this->push_param_info(param_info<std::vector<T>,std::string>("n01",1));
this->push_param_info(param_info<std::vector<T>,std::string>("beta1",.66));
this->push_param_info(param_info<std::vector<T>,std::string>("rc1",100));
this->push_param_info(param_info<std::vector<T>,std::string>("n02",1));
this->push_param_info(param_info<std::vector<T>,std::string>("beta2",.67));
this->push_param_info(param_info<std::vector<T>,std::string>("rc2",110));
}
public:
constrained_dbeta<T>* do_clone()const
{
return new constrained_dbeta<T>(*this);
}
std::vector<T> do_eval(const std::vector<T> & x,
const std::vector<T>& p)
{
T n01=std::abs(p[0]);
T beta1=p[1];
T rc1=p[2];
T n02=std::abs(p[3]);
T beta2=p[4];
T rc2=p[5];
std::vector<T> result(x.size()-1);
for(int i=1;i<x.size();++i)
{
T xi=(x[i]+x[i-1])/2;
T yi=0;
yi=n01*pow(1+xi*xi/rc1/rc1,-3./2.*beta1)+n02*pow(1+xi*xi/rc2/rc2,-3./2.*beta2);
result[i-1]=yi;
}
return result;
}
bool do_meets_constraint(const std::vector<T>& p)const
{
if(p.size()!=6)
{
cerr<<p.size()<<endl;
cerr<<this->get_num_params()<<endl;
assert(0);
}
T rc1=p.at(2);
T rc2=p.at(5);
if(rc2>rc1)
{
return true;
}
else
{
cerr<<rc2<<"\t"<<rc1<<endl;
cerr<<"***"<<endl;
return false;
}
}
};
}
#endif
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