RE: help axis

I found a solution but it is not very nice...

{

   TFile *f=TFile::Open("hsimple.root");    TTree *ntuple = (TTree*)f->Get("ntuple");    TCanvas *c1 = new TCanvas();
   c1->SetLogy();
   ntuple->Draw("pz:px>>h2(50,-3,3,50,1e-2,20)","","");

   TH2 *h2 = (TH2*)gDirectory->Get("h2");

   TGraph *graph = (TGraph*)gPad->GetPrimitive("Graph");    graph->GetYaxis()->SetTitle("Y title");    graph->GetXaxis()->SetTitle("X title");    TCanvas *c2 = new TCanvas();
   graph->Draw("ap");

   c2->SetLogy();
   h2->SetMaximum(0);  
   h2->Draw("sames");   

-----Original Message-----
From: owner-roottalk_at_root.cern.ch [mailto:owner-roottalk_at_root.cern.ch] On Behalf Of Luca Grandi Sent: Wednesday, March 12, 2008 6:00 PM To: roottalk (Mailing list discussing all aspects of the ROOT system) Subject: [ROOT] help axis

Dear Rooties,

I am using the code below to plot a scatter plot on semi-logarithmic scale and, at the same time, to be able to plot the Stats.

I have tried different solutions but I am unable to write the title on the axis of the scatter plot.

Could you help me?

Thanks

Luca

{

TFile *f=TFile::Open("hsimple.root");

TTree *ntuple = (TTree*)f->Get("ntuple");

TCanvas *c1 = new TCanvas();

 c1->SetLogy();

ntuple->Draw("pz:px>>h2(50,-3,3,50,1e-2,20)","","");

TH2 *h2 = (TH2*)gDirectory->Get("h2");

h2->SetMaximum(0);
h2->Draw("sames");
} Received on Wed Mar 12 2008 - 18:53:23 CET