root-6.10.00/html/statsEditing_8C.html

TCanvas *statsEditing() {

   // Create and plot a test histogram with stats

   TCanvas *se = new TCanvas;

   TH1F *h = new TH1F("h","test",100,-3,3);

   h->FillRandom("gaus",3000);

   gStyle->SetOptStat();

   h->Draw();

   se->Update();


   // Retrieve the stat box

   TPaveStats *ps = (TPaveStats*)se->GetPrimitive("stats");

   ps->SetName("mystats");

   TList *listOfLines = ps->GetListOfLines();


   // Remove the RMS line

   TText *tconst = ps->GetLineWith("RMS");

   listOfLines->Remove(tconst);


   // Add a new line in the stat box.

   // Note that "=" is a control character

   TLatex *myt = new TLatex(0,0,"Test = 10");

   myt ->SetTextFont(42);

   myt ->SetTextSize(0.04);

   myt ->SetTextColor(kRed);

   listOfLines->Add(myt);


   // the following line is needed to avoid that the automatic redrawing of stats

   h->SetStats(0);


   se->Modified();

   return se;

}