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/**
\file dualgauss1d.hpp
\brief Dualgauss model
\author Junhua Gu
*/
#ifndef DUALGAUSS_MODEL_H_
#define DUALGAUSS_MODEL_H_
#define OPT_HEADER
#include <core/fitter.hpp>
#include <cmath>
#include <misc/optvec.hpp>
namespace opt_utilities
{
template <typename T>
class dualgauss1d
:public model<optvec<T>,optvec<T>,optvec<T>,std::string>
,public pre_estimatable<optvec<T>,optvec<T>,optvec<T>,std::string>
{
private:
dualgauss1d* do_clone()const
{
return new dualgauss1d<T>(*this);
}
const char* do_get_type_name()const
{
return "1d dualgaussian";
}
public:
dualgauss1d()
{
this->push_param_info(param_info<optvec<T> >("N1",1));
this->push_param_info(param_info<optvec<T> >("x01",0));
this->push_param_info(param_info<optvec<T> >("sigma1",1));
this->push_param_info(param_info<optvec<T> >("N2",1));
this->push_param_info(param_info<optvec<T> >("x02",1));
this->push_param_info(param_info<optvec<T> >("sigma2",1));
}
public:
optvec<T> do_eval(const optvec<T>& x,const optvec<T>& param)
{
T N1=get_element(param,0);
T x01=get_element(param,1);
T sigma1=get_element(param,2);
T N2=get_element(param,3);
T x02=get_element(param,4);
T sigma2=get_element(param,5);
optvec<T> y1=(x-x01)/sigma1;
optvec<T> y2=(x-x02)/sigma2;
return N1*exp(-y1*y1/2.)+N2*exp(-y2*y2/2.);
}
private:
std::string do_get_information()const
{
#include <model_doc/dualgauss1d.info>
return "";
}
};
}
#endif
//EOF
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