{
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    "# tree502_staff\n",
    "Create a plot of the data in `cernstaff.root`\n",
    "To create `cernstaff.root`, execute tutorial `$ROOTSYS/tutorials/io/tree/tree500_cernbuild.C`\n",
    "\n",
    "\n",
    "\n",
    "\n",
    "**Author:** Rene Brun  \n",
    "<i><small>This notebook tutorial was automatically generated with <a href= \"https://github.com/root-project/root/blob/master/documentation/doxygen/converttonotebook.py\">ROOTBOOK-izer</a> from the macro found in the ROOT repository  on Tuesday, May 19, 2026 at 08:20 PM.</small></i>"
   ]
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  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "7b1f732d",
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    "execution": {
     "iopub.execute_input": "2026-05-19T20:20:10.985271Z",
     "iopub.status.busy": "2026-05-19T20:20:10.985162Z",
     "iopub.status.idle": "2026-05-19T20:20:11.521403Z",
     "shell.execute_reply": "2026-05-19T20:20:11.520800Z"
    }
   },
   "outputs": [
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "Info in <TGL5DDataSet::TGL5DDataSet>: Number of selected rows: 3354\n",
      "Info in <TCanvas::Print>: png file staff.C.png has been created\n"
     ]
    }
   ],
   "source": [
    "auto f = TFile::Open(\"cernstaff.root\");\n",
    "auto T = f->Get<TTree>(\"T\");\n",
    "T->Draw(\"Grade:Age:Cost:Division:Nation\", \"\", \"gl5d\");\n",
    "if (gPad)\n",
    "   gPad->Print(\"staff.C.png\");"
   ]
  }
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