TPaveStats and Divide

Hi,

I have a script that:

• sets a global style using gStyle->SetOptStat(11)
• opens a root file
• gets some TH1D
• creates a canvas
• divides the canvas in 4 (2x2)
• draws a histo in each subcanvas
• saves the canvas in a eps file

Now the problem! How to change the OptStat options only for the first histo?

I've searched for it on the web site but this solution doesn't fix the problem in my script:    

  fMCVerticesCanvas = new TCanvas("MCVerticesCanvas", "MC Vertices", 0, 0, 1100, 1100);

  fMCVerticesCanvas->Divide(2, 2);

  fMCVerticesCanvas->cd(1);

  fMCVerticesCanvas->cd(1)->SetLogy();

  fVerticesClass->Draw();

  ((TPaveStats
*)fVerticesClass->GetListOfFunctions()->FindObject("stats"))->SetOptStat(1111);  

The tricky point is that if I try this interactively it works!!!

Running from the script I get:  

Error: illegal pointer to class object
(TPaveStats*)fVerticesClass->GetListOfFunctions()->FindObject("stats") 0x0 638 C:\root\ManuC\THeavyFlavoursAllPlots.C(198)  

I'm running 5.17.02 on WinXP!    

Bye.   Received on Sat Apr 19 2008 - 19:23:37 CEST