TAB3Peak.h

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#ifndef TAB3PEAK_H
#define TAB3PEAK_H
 
/** \addtogroup Fitting Fitting & Analysis
 *  @{
 */
 
#include <cstdarg>
 
#include "TF1.h"
 
#include "TSinglePeak.h"
 
/////////////////////////////////////////////////////////////////
///
/// \class TAB3Peak
///
///  This class is used to fit Addback peaks in data
///
/////////////////////////////////////////////////////////////////
 
class TAB3Peak : public TSinglePeak {
public:
   // ctors and dtors
   TAB3Peak() = default;
   explicit TAB3Peak(Double_t centroid) { Centroid(centroid); }
   TAB3Peak(const TAB3Peak&)                = default;
   TAB3Peak(TAB3Peak&&) noexcept            = default;
   TAB3Peak& operator=(const TAB3Peak&)     = default;
   TAB3Peak& operator=(TAB3Peak&&) noexcept = default;
   ~TAB3Peak()                              = default;
 
   void InitParNames() override;
   void InitializeParameters(TH1* hist, const double& rangeLow, const double& rangeHigh) override;
 
   void Centroid(const Double_t& centroid) override;
 
   Double_t Centroid() const override;
   Double_t CentroidErr() const override;
   Double_t Width() const override;
   Double_t Sigma() const override;
   Double_t SigmaErr() const override { return GetFitFunction()->GetParError(GetFitFunction()->GetParNumber("sigma")); }
 
   void DrawComponents(Option_t* opt = "") override;
 
protected:
   Double_t PeakFunction(Double_t* dim, Double_t* par) override;
   Double_t BackgroundFunction(Double_t* dim, Double_t* par) override;
 
private:
   static Double_t OneHitPeakFunction(Double_t* dim, Double_t* par);
   static Double_t TwoHitPeakFunction(Double_t* dim, Double_t* par);
   static Double_t ThreeHitPeakFunction(Double_t* dim, Double_t* par);
   Double_t        OneHitPeakOnGlobalFunction(Double_t* dim, Double_t* par);
   Double_t        TwoHitPeakOnGlobalFunction(Double_t* dim, Double_t* par);
   Double_t        ThreeHitPeakOnGlobalFunction(Double_t* dim, Double_t* par);
 
   TF1* fOneHitOnGlobal{nullptr};
   TF1* fTwoHitOnGlobal{nullptr};
   TF1* fThreeHitOnGlobal{nullptr};
 
public:
   /// \cond CLASSIMP
   ClassDefOverride(TAB3Peak, 2)   // NOLINT(readability-else-after-return)
   /// \endcond
};
/*! @} */
#endif