BaseFunctionFitter.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
 
 
#ifndef BaseFunctionFitterHXX
#define BaseFunctionFitterHXX

// HEADER FILES //
 
// CLHEP //
//#include "CLHEP/config/CLHEP.h"
#include "CLHEP/Units/SystemOfUnits.h"
#include "CLHEP/Units/PhysicalConstants.h"
 
#include "EventPrimitives/EventPrimitives.h"
 
// standard C++ libraries //
#include <iostream>
#include <iomanip>
#include <fstream>
 
// STL //
#include <vector>
 
// MDT calibration utilities //
#include "MuonCalibMath/BaseFunction.h"
#include "MuonCalibMath/SamplePoint.h"
 
namespace MuonCalib {

    class BaseFunctionFitter {
 
      private:
          // auxiliary minimization objects //
          unsigned int m_nb_coefficients{0}; 
          Amg::MatrixX m_A{}; 
          Amg::VectorX m_alpha{}; 
          Amg::VectorX m_b{}; 
 
          // private methods //
          void init(); 
          void init(const unsigned nb_coefficients); 
 
      public:
        // Constructors
        BaseFunctionFitter();
        BaseFunctionFitter(const unsigned nb_coefficients);
        int number_of_coefficients() const; 
        const Amg::VectorX& coefficients() const;
        void set_number_of_coefficients(const unsigned nb_coefficients);
        void fit_parameters(const std::vector<SamplePoint> & sample_point,
                                  const unsigned int first_point,
                                  const unsigned int last_point,
                                  const BaseFunction& base_function);
    };
}
#endif