TRatioPlot with TLatex

[JCZENG]

Hi everyone,

I tried the TRatioPlot tutorial here.
https://root.cern.ch/doc/v608/ratioplot1_8C.html

It works great, but it is not obvious to me how this interacts with TLatex.
Besides the following two lines, what else is needed to add the “ATLAS” label to the UpperPad?

TLatex latex;
latex.DrawLatex(0.55, 0.78, “ATLAS”);

Thanks,
JianCong

[Wile_E_Coyote]

TPad *p = rp->GetUpperPad(); if (p) p->cd();
TLatex latex; latex.DrawLatexNDC(0.55, 0.78, "ATLAS");
c1->cd(0); c1->Modified(); c1->Update();