void Digitizer()
{
	TFile* f1 = new TFile ("OutputCH2_0.root","recreate");
	

//==========Defining Histograms==================	
	TH1D *Energy_S = new TH1D ("Energy", "Energy", 8000,0,8000);
	TH1D *EnergyCal_S = new TH1D ("EnergyCal_S", "calibrated Energy", 3000,0,6000);
	
//============Defining Variables===================	
	int i;
	UShort_t Energy; 
//============Adding ROOt files to chain============
	TChain *tree = new TChain("Data_F");
	tree->Add("DataF_CH2.root");
	Long64_t NEntries=tree->GetEntries();
        printf("NEntries=%lld\n",NEntries);

//==========Linking variable to branch=============
        tree->SetBranchAddress("Energy",&Energy);

             
        for(i=0;i<NEntries;++i)
        {
         tree->GetEntry(i); 
        
//===========Filling the Histograms=============        
        Energy_S->Fill(Energy);
        EnergyCal_S->Fill(3.589*Energy -35.546 + (float) rand()/(float) RAND_MAX);
            
        Double_t p=(Double_t)i*100/NEntries;
            printf("\r%dth event\t(%.2lf%%)",i+1,p);
	    fflush(stdout); 
	    
	    	 }     //For loop bracket close
	 
//========Writing to file==============
f1->cd();
Energy_S->Write();
EnergyCal_S->Write();

f1->Close();

}