Re: 2 plots in the same canvas

From: Rene Brun <Rene.Brun_at_cern.ch>
Date: Thu, 09 Aug 2007 09:12:06 +0200

Assuming two files Ideal.root and Misaligned.root containing each a tree named ZEEL2, you can do something like:

   TFile *f1 = TFile::Open("Ideal.root");
   TTree *Ideal = (TTree*)f1->Get("ZEEL2");
   TFile *f2 = TFile::Open("Misaligned.root");
   TTree *Misaligned = (TTree*)f2->Getr("ZEEL2");

   TCanvas *c1 = new TCanvas("c1");

   //possibly divide your canvas into subpads
   //c1->Divide(4,4);
   //c1->cd(1);

   Ideal->Draw("var","some selection");
   Misaligned->Draw("var","some selection","same");

Rene brun

Daniel Andrade Leon wrote:
> Hi ROOTERS !!!
>
> I'm new in ROOT.
> Please help me...!!!
> I have one ntuple with information about Ideal Geometry and 4 ntuples with information about Misaligned Geometry.
> I have to plot about 60 variables that are in the tree named "ZEEL2" inside the ntuples and change the cuts or scale of some of the variables in order to get a good plot.
> After that, I have to compare the ideal and the misaligned geometry by plotting both in the same canvas.
>
> Thanks for your help.
> ;)
>
> Daniel
>
>
>
>
>
Received on Thu Aug 09 2007 - 09:18:46 CEST