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/**
\file data_loaders.hpp
a set of classes used to load data_set from std::istream
*/
#ifndef DATA_LOADERS_H
#define DATA_LOADERS_H
#include <core/fitter.hpp>
#include <data_sets/default_data_set.hpp>
#include <iostream>
#include <fstream>
#include <cmath>
namespace opt_utilities
{
template <typename Ty,typename Tx>
class dl_x_y_ye;
template <typename Ty,typename Tx>
std::istream& operator>>(std::istream& ifs,dl_x_y_ye<Ty,Tx>& dl);
template <typename Ty,typename Tx>
class dl_x_xe_y_ye;
template <typename Ty,typename Tx>
std::istream& operator>>(std::istream& ifs,dl_x_xe_y_ye<Ty,Tx>& dl);
template <typename Ty,typename Tx>
class dl_x_xu_xl_y_yu_yl;
template <typename Ty,typename Tx>
std::istream& operator>> (std::istream& ifs,dl_x_xu_xl_y_yu_yl<Ty,Tx>& dl);
/**
loading data from file in format [x] [y] [y error]
*/
template <typename Ty,typename Tx>
class dl_x_y_ye
{
private:
default_data_set<Ty,Tx> ds;
public:
data_set<Ty,Tx>& get_data_set()
{
return ds;
}
void load_from(std::istream& ifs)
{
for(;;)
{
Tx x;
Tx x_err;
Ty y;
Ty y_err(1);
ifs>>x>>y>>y_err;
if(!ifs.good())
{
break;
}
data<Ty,Tx> d(x,y,y_err,y_err,x_err,x_err);
ds.push_back(d);
}
//return ifs;
}
void load_from(const char* name)
{
std::ifstream ifs(name);
load_from(ifs);
}
//friend std::istream& operator>> <>(std::istream& ifs,dl_x_y_ye<Ty,Tx>& dl);
};
/**
stream operator
*/
template <typename Ty,typename Tx>
std::istream& operator>>(std::istream& ifs,dl_x_y_ye<Ty,Tx>& dl)
{
dl.load_from(ifs);
return ifs;
}
/**
loading data from stream with file
[x] [x error] [y] [y error]
*/
template <typename Ty,typename Tx>
class dl_x_xe_y_ye
{
private:
default_data_set<Ty,Tx> ds;
public:
data_set<Ty,Tx>& get_data_set()
{
return ds;
}
void load_from(std::istream& ifs)
{
for(;;)
{
Tx x;
Tx x_err;
Ty y;
Ty y_err(1);
ifs>>x>>x_err>>y>>y_err;
if(!ifs.good())
{
break;
}
data<Ty,Tx> d(x,y,y_err,y_err,x_err,x_err);
ds.push_back(d);
}
}
void load_from(const char* name)
{
std::ifstream ifs(name);
load_from(ifs);
}
};
/**
stream operator
*/
template <typename Ty,typename Tx>
std::istream& operator>>(std::istream& ifs,dl_x_xe_y_ye<Ty,Tx>& dl)
{
dl.load_from(ifs);
return ifs;
}
/**
loading data from stream with format
[x] [x lower error] [x upper error] [y] [y lower error] [y upper error]
*/
template <typename Ty,typename Tx>
class dl_x_xu_xl_y_yu_yl
{
private:
default_data_set<Ty,Tx> ds;
public:
data_set<Ty,Tx>& get_data_set()
{
return ds;
}
void load_from(std::istream& ifs)
{
for(;;)
{
Tx x;
Tx xl,xu;
Ty y;
Ty yl(1),yu(1);
ifs>>x>>xu>>xl>>y>>yu>>yl;
xu=std::abs(xu);
xl=std::abs(xl);
yu=std::abs(yu);
yl=std::abs(yl);
if(!ifs.good())
{
break;
}
data<Ty,Tx> d(x,y,yl,yu,xl,xu);
ds.push_back(d);
}
}
void load_from(const char* name)
{
std::ifstream ifs(name);
load_from(ifs);
}
};
/**
stream operator
*/
template <typename Ty,typename Tx>
std::istream& operator>> (std::istream& ifs,dl_x_xu_xl_y_yu_yl<Ty,Tx>& dl)
{
dl.load_from(ifs);
return ifs;
}
}
#endif
//EOF
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