added

readGraph.C

+{
+
+  TFile *f = new TFile("myGraph.root");
+  TGraph *myGraph = (TGraph*)f->Get("Graph");
+  for (int i = 0; i < myGraph->GetN(); i++)  {
+    cout << "{" <<   *(myGraph->GetX()+i) << "," << *(myGraph->GetY()+i) << "}, "; 
+  }
+
+  // myGraph->Draw();
+
+}
+