#ifndef final_fitting_h
#define final_fitting_h

#include "TH2.h"
#include "TH1.h"
#include "TF1.h"
#include "TGraph.h"
#include "TProfile.h"
#include "TMath.h"      
#include "TMinuit.h"
#include "TVirtualFitter.h"
#include <TFile.h>
#include <iostream>

class final_fitting {
  public:

double fit(TH2F   *spl,
           double  low,
           double  high, 
           double &off);

double fitlin(TH2F   *spl,
              double  low, 
              double  high,
              double &errpar,
              double &offset, 
              double &offset_error,
              double &chis,
              double &cov00, 
              double &cov01, 
              double &cov11);

double fitlin_pol(TH2F   *spl, 
        	  double  low,
        	  double  high,
        	  double &par0, 
        	  double &par2, 
        	  double &par3, 
        	  double &epar0, 
        	  double &epar1, 
        	  double &epar2, 
        	  double &epar3);

double fitlin2(TH2F   *spl,
               double &errpar,
               double &offset,
               double &offset_error, 
               double &chis,
               double &cov00,
               double &cov01,
               double &cov11);

double fitlin3(TH2F   *spl,
               double &errpar,
               double &offset,
               double &offset_error, 
	       double &chis,
               double &cov00,
               double &cov01,
               double &cov11);

double gaus1(TH1F *spl,
             double  low, 
             double  high,
             double &errvalor, 
             double &sigma, 
             double &errsig, 
             double &chis);

double fit_p(TH2F *spl,
             double  low,
             double  high, 
             double &par0, 
             double &par2, 
             double &par3,
             double &epar0,
             double &epar1, 
             double &epar2, 
             double &epar3,
             double &chis);

double mainfit(TGraph *graph, 
               int     evt, 
               double &errpar,
               double &offset,
               double &offset_error,
               double &chis,
               double &cov00,
               double &cov01, 
               double &cov11,
               int     i,
               int     j);

double linearGraph(TGraph *graph,
                   double &errpar,
                   double &offset,
                   double &offset_error, 
	           double &chis,
                   double &cov00,
                   double &cov01,
                   double &cov11,
                   int     i,
                   int     side);

};

#endif // #ifdef final_fitting_cxx