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/**
\file mul_model.hpp
\brief the multiply of two models
\author Junhua Gu
*/
#ifndef MUL_MODEL_HPP
#define MUL_MODEL_HPP
#define OPT_HEADER
#include <core/fitter.hpp>
#include <cmath>
namespace opt_utilities
{
template <typename Ty,typename Tx,typename Tp,typename Tstr>
class mul_model
:public model<Ty,Tx,Tp,Tstr>
{
private:
model<Ty,Tx,Tp,Tstr>* do_clone()const
{
return new mul_model<Ty,Tx,Tp,Tstr>(*this);
}
private:
mul_model()
{
}
private:
model<Ty,Tx,Tp,Tstr>* pm1;
model<Ty,Tx,Tp,Tstr>* pm2;
public:
mul_model(const model<Ty,Tx,Tp,Tstr>& m1,
const model<Ty,Tx,Tp,Tstr>& m2)
:pm1(m1.clone()),pm2(m2.clone())
{
int np1=m1.get_num_params();
int np2=m2.get_num_params();
for(int i=0;i<np1;++i)
{
param_info<Tp,Tstr> p(m1.get_param_info(i));
param_info<Tp,Tstr> p1(p.get_name()+"1",p.get_value());
this->push_param_info(p1);
}
for(int i=0;i<np2;++i)
{
param_info<Tp,Tstr> p(m2.get_param_info(i));
param_info<Tp,Tstr> p2(p.get_name()+"2",p.get_value());
this->push_param_info(p2);
}
}
mul_model(const mul_model& rhs)
:pm1(NULL),pm2(NULL)
{
int np1(0),np2(0);
if(rhs.pm1)
{
pm1=rhs.pm1->clone();
np1=rhs.pm1->get_num_params();
for(int i=0;i<np1;++i)
{
param_info<Tp,Tstr> p(rhs.pm1->get_param_info(i));
param_info<Tp,Tstr> p1(p.get_name()+"1",p.get_value());
this->push_param_info(p1);
}
}
if(rhs.pm2)
{
pm2=rhs.pm2->clone();
np2=rhs.pm2->get_num_params();
for(int i=0;i<np2;++i)
{
param_info<Tp,Tstr> p(rhs.pm2->get_param_info(i));
param_info<Tp,Tstr> p2(p.get_name()+"2",p.get_value());
this->push_param_info(p2);
}
}
}
mul_model& operator=(const mul_model& rhs)
{
if(this==&rhs)
{
return *this;
}
if(!pm1)
{
//delete pm1;
pm1->destroy();
}
if(!pm2)
{
//delete pm2;
pm2->destroy();
}
int np1(0),np2(0);
if(rhs.pm1)
{
pm1=rhs.pm1->clone();
np1=rhs.pm1->get_num_params();
for(int i=0;i<np1;++i)
{
param_info<Tp,Tstr> p(rhs.pm1->get_param_info(i));
param_info<Tp,Tstr> p1(p.get_name()+"1",p.get_value());
this->push_param_info(p1);
}
}
if(rhs.pm2)
{
pm2=rhs.pm2->clone();
np2=rhs.pm2->get_num_params();
for(int i=0;i<np2;++i)
{
param_info<Tp,Tstr> p(rhs.pm2->get_param_info(i));
param_info<Tp,Tstr> p2(p.get_name()+"2",p.get_value());
this->push_param_info(p2);
}
}
return *this;
}
~mul_model()
{
if(!pm1)
{
//delete pm1;
pm1->destroy();
}
if(!pm2)
{
//delete pm2;
pm2->destroy();
}
}
public:
Ty do_eval(const Tx& x,const Tp& param)
{
if(!pm1)
{
throw opt_exception("incomplete model!");
}
if(!pm2)
{
throw opt_exception("incomplete model!");
}
Tp p1(pm1->get_num_params());
Tp p2(pm2->get_num_params());
int i=0;
int j=0;
for(i=0;i<pm1->get_num_params();++i,++j)
{
set_element(p1,i,get_element(param,j));
}
for(i=0;i<pm2->get_num_params();++i,++j)
{
set_element(p2,i,get_element(param,j));
}
return pm1->eval(x,p1)*pm2->eval(x,p2);
}
};
template <typename Ty,typename Tx,typename Tp,typename Tstr>
mul_model<Ty,Tx,Tp,Tstr> operator*(const model<Ty,Tx,Tp,Tstr>& m1,
const model<Ty,Tx,Tp,Tstr>& m2)
{
return mul_model<Ty,Tx,Tp,Tstr>(m1,m2);
}
}
#endif
//EOF
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