void jeturnon_tau()
{
  gROOT->SetStyle("Plain");
  gStyle->SetOptStat(0);
  gStyle->SetOptTitle(0);

  Int_t icol[4] = {1,2,4,3};

  Char_t ch_name[] = "t000";
  
  const Int_t nf = 1;
  
  TFile* jettrigeff = new TFile("jettrigeff.root");
  TFile* jettrigeff_tau = new TFile("jettrigeff_tau.root");

  jettrigeff->cd();
  TH1F* J20_dist_pt = (TH1F*)gROOT->FindObject("J20_dist_pt")->Clone();
  TH1F* J20_dist_L1_pt = (TH1F*)gROOT->FindObject("J20_dist_L1_pt")->Clone();
  
  jettrigeff_tau->cd();
  TH1F* J20_dist_pt_tau = (TH1F*)gROOT->FindObject("J20_dist_pt")->Clone();
  TH1F* J20_dist_L1_pt_tau = (TH1F*)gROOT->FindObject("J20_dist_L1_pt")->Clone();
  
 
  Int_t n = J20_dist_pt->GetNbinsX();
  Double_t xmin = J20_dist_pt->GetXaxis()->GetXmin();
  Double_t xmax = J20_dist_pt->GetXaxis()->GetXmax();
  //cout<<xmin<<endl;
  TH1F* h_eff = new TH1F("L1 eff","eff",n,xmin,xmax);
  TH1F* h_eff_tau = new TH1F("L1 eff for tau-matched ","eff_tau",n,xmin,xmax);

  h_eff->Divide(J20_dist_pt,J20_dist_L1_pt,1,1,"B");
  h_eff->SetMinimum(0.0);
  h_eff->SetMaximum(1.05);
  h_eff->SetMarkerStyle(20);
  h_eff->SetMarkerColor(2);
  h_eff->GetXaxis()->SetTitle("pT of matched jet, GeV");
  h_eff->Draw("pe0");

  h_eff_tau->Divide(J20_dist_pt_tau,J20_dist_L1_pt_tau,1,1,"B");
  h_eff_tau->SetMinimum(0.0);
  h_eff_tau->SetMaximum(1.05);
  h_eff_tau->GetXaxis()->SetTitle("pT of matched jet, GeV");
  h_eff_tau->Draw("pe0same"); //jettrigeff->Close();
  //jettrigeff_tau->Close();
}