Dummy implementation of the method GetFitResult is added.

[u/mrichter/AliRoot.git] / PHOS / AliPHOSFastAltroFit.h

#ifndef ALIPHOSFASTALTROFIT_H
#define ALIPHOSFASTALTROFIT_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice     */
/* $Id: $ */

/* History of svn commits
 * $Log$
 */


//_________________________________________________________________________
//  Procedure of fast altro fitting     
//                  
//*-- Author:  Aleksei Pavlinov; IHEP, Protvino, Russia

#include <TNamed.h>
#include <TArrayD.h>
// --- ROOT system ---

class AliPHOSFastAltroFit : public TNamed {

public:

  AliPHOSFastAltroFit();
  AliPHOSFastAltroFit(const char* name, const char* title, const Double_t tau);
  virtual ~AliPHOSFastAltroFit(); 

  void SetTau(const Double_t tau) {fTau = tau;}

  void FastFit(Int_t* t, Int_t* y, Int_t n, Double_t sig, Double_t tau, Double_t ped);

  void GetFitResult(Double_t &amp, Double_t &eamp, Double_t &t0, Double_t &et0, Double_t &chi2,
		    Int_t &fNDF) {};
  Double_t GetSig()    const {return fSig;}
  Double_t GetTau()    const {return fTau;}
  Double_t GetN()      const {return fN;}
  Double_t GetAmp()    const {return fAmp;}
  Double_t GetAmpErr() const {return fAmpErr;}
  Double_t GetT0()     const {return fT0;}
  Double_t GetT0Err()  const {return fT0Err;}
  Double_t GetChi2()   const {return fChi2;}
  Double_t GetNDF()    const {return fNDF;}

  static void DeductPedestal(Int_t* t, Int_t* y, Int_t n, Double_t ped, Double_t tau, 
  Double_t* tn, Double_t* yn, Int_t &nn);
  static void FastFit(Double_t* t, Double_t* y, Int_t n, Double_t sig, Double_t tau,
  Double_t &amp, Double_t &eamp, Double_t &t0, Double_t &et0, Double_t &chi2);
  static Bool_t QuadraticRoots(Double_t a, Double_t b, Double_t c, Double_t &x1, Double_t &x2);
  static void Amplitude(Double_t* t, Double_t* y, Int_t n, Double_t sig, Double_t tau, 
  Double_t t0, Double_t &amp, Double_t &chi2);
  static void CalculateParsErrors(Double_t* t, Double_t* y, Int_t n, Double_t sig, Double_t tau,
				 Double_t &amp, Double_t &t0, Double_t &eamp, Double_t &et0);

 protected:
  Double_t fSig;
  Double_t fTau; // filter time response
  Double_t fN;   // order of function (equal 2)

  Double_t fAmp;
  Double_t fAmpErr;
  Double_t fT0;
  Double_t fT0Err;
  Double_t fChi2;
  Int_t    fNDF;

  ClassDef(AliPHOSFastAltroFit,1) // Class for fast altro fitting
};

#endif // ALIPHOSFASTALTROFIT_H