EGHFitter1D.h

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// $Maintainer: Timo Sachsenberg $
// $Authors: Stephan Aiche $
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#pragma once

#define DEBUG_FEATUREFINDER

#include <OpenMS/TRANSFORMATIONS/FEATUREFINDER/LevMarqFitter1D.h>

namespace OpenMS
{
  class OPENMS_DLLAPI EGHFitter1D :
    public LevMarqFitter1D
  {
public:
    EGHFitter1D();

    EGHFitter1D(const EGHFitter1D & source);

    ~EGHFitter1D() override;

    virtual EGHFitter1D & operator=(const EGHFitter1D & source);

    static Fitter1D * create()
    {
      return new EGHFitter1D();
    }

    static const String getProductName()
    {
      return "EGHFitter1D";
    }

    QualityType fit1d(const RawDataArrayType & range, std::unique_ptr<InterpolationModel>& model) override;

protected:

    struct Data
    {
      typedef Peak1D PeakType;
      typedef std::vector<PeakType> RawDataArrayType;

      Size n;
      RawDataArrayType set;
    };

    class EGHFitterFunctor : public LevMarqFitter1D::GenericFunctor
    {
      public:
      EGHFitterFunctor(int dimensions, const EGHFitter1D::Data * data)
      : LevMarqFitter1D::GenericFunctor(dimensions, data->n), m_data(data) {}

      int operator()(const Eigen::VectorXd &x, Eigen::VectorXd &fvec) const override;
      // compute Jacobian matrix for the different parameters
      int df(const Eigen::VectorXd &x, Eigen::MatrixXd &J) const override;

      protected:
        const EGHFitter1D::Data * m_data;
    };

    virtual void setInitialParameters_(const RawDataArrayType & set);

    CoordinateType height_;
    CoordinateType tau_;
    CoordinateType sigma_square_;
    CoordinateType retention_;

    void updateMembers_() override;
  };

}