   TCanvas * c1 = new TCanvas("c1","Canvas");
   c1->SetGridx();
   c1->SetGridy();
   TFile * file = new TFile("fillrandom.root");
   file->ls();
   TF1 * sqroot = 0;
   file->GetObject("sqroot",sqroot);
   sqroot->Print();

   TH1 * h1f = 0;
   file->GetObject("h1f",h1f);

   h1f->Fit("sqroot");
