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#ifndef GAUSS_MODEL_H_
#define GAUSS_MODEL_H_
#include <core/fitter.hpp>
#include <cmath>
namespace opt_utilities
{
template <typename T>
class gauss1d
:public model<T,T,std::vector<T>,std::string>
{
private:
model<T,T,std::vector<T> >* do_clone()const
{
return new gauss1d<T>(*this);
}
public:
gauss1d()
{
this->push_param_info(param_info<std::vector<T> >("N",1));
this->push_param_info(param_info<std::vector<T> >("x0",0));
this->push_param_info(param_info<std::vector<T> >("sigma",1));
}
public:
T do_eval(const T& x,const std::vector<T>& param)
{
T N=get_element(param,0);
T x0=get_element(param,1);
T sigma=get_element(param,2);
T y=(x-x0)/sigma;
return N*exp(-y*y);
}
private:
std::string do_to_string()const
{
return "Gaussian model\n"
"y=N*exp(-(x-x0)^2/sigma^2\n";
}
};
};
#endif
//EOF
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