void printSignificance(TH1F sig, TH1F bkg) {

   TFile *f = TFile::Open("significance1.root");
   
   TH1F *S = (TH1F *)f->Get("sig");
   TH1F *B = (TH1F *)f->Get("bkg");
 
   for (int i=0; i<=S->GetNbinsX(); i++){
        for (int j=0;i<=B->GetNbinsX(); j++){
	Double_t S = histosignal->Integral(i,j);
        Double_t B = histobackground->Integral(i,j);
	//Double_t Sig1 = S/sqrt(B);
        Double_t Sig2 = S/sqrt(S+B);
        effsig=sig->Integral(i,j)/sig->integral();
        effbkg=bkg->Integral(i,j)/bkg->integral();
           if( B != 0. && (S+B) != 0. ) {
            // Sig = S/sqrt(B);
             Sig = S/sqrt(S+B);
    }
     
       	   std::cout << " effsig " << effsig() << " effbkg " << effbkg << " Sig" << Sig << std::endl;
  
            }
 
        }