pl_all_CluMul.C

void pl_all_CluMul(Int_t iNSt = 6) {
  //  TCanvas *can = new TCanvas("can22","can22");
  //  can->Divide(2,2);
  //  TCanvas *can = new TCanvas("can","can",48,55,700,900);
  TCanvas* can = new TCanvas("can", "can", 48, 56, 900, 900);
  can->Divide(4, 4, 0.01, 0.01);
  //  can->Divide(2,2,0,0);
  Float_t lsize = 0.07;

  gPad->SetFillColor(0);
  gStyle->SetPalette(1);
  gStyle->SetLabelSize(lsize);

  //gStyle->SetOptStat(kTRUE);
  //gROOT->cd();
  //gROOT->SetDirLevel(2);

  TH1* h;
  TH2* h2;
  const Int_t iType[6]   = {5, 4, 6, 2, 9, 8};
  const Int_t iSmNum[6]  = {3, 1, 1, 2, 3, 3};
  const Int_t iRpcNum[6] = {1, 1, 2, 1, 2, 1};

  Int_t iCanv = 0;
  // if (h!=NULL) h->Delete();

  for (Int_t iSt = 0; iSt < iNSt; iSt++) {
    cout << "plot station " << iSt << " with " << iSmNum[iSt] << " modules of "
         << iRpcNum[iSt] << " Rpcs each" << endl;
    for (Int_t iSm = 0; iSm < iSmNum[iSt]; iSm++) {
      cout << "plot module at station " << iSt << " with " << iSmNum[iSt]
           << " modules of " << iRpcNum[iSt] << " Rpcs each" << endl;
      for (Int_t iRp = 0; iRp < iRpcNum[iSt]; iRp++) {
        cout << "plot rpc at station " << iSt << " with " << iSmNum[iSt]
             << " modules of " << iRpcNum[iSt] << " Rpcs each" << endl;
        can->cd(iCanv + 1);
        iCanv++;
        gROOT->cd();
        TString hname =
          Form("cl_SmT%01d_sm%03d_rpc%03d_Mul", iType[iSt], iSm, iRp);
        h = (TH1*) gROOT->FindObjectAny(hname);
        if (h != NULL) {
          h->Draw("");
          gPad->SetLogy();
        } else {
          cout << "Histogram " << hname << " not existing. " << endl;
        }
        if (iRp == 10) break;
      }
    }
  }
  can->SaveAs(Form("pl_all_CluMul.pdf"));
}