2 histograms, one above the other with no spaces in between

Hello, I’m a beginner.
Could you tell me how to plot 2 histograms one above the other with no space in between and no Ox axis scale for the above histogram as they both have the same Ox.
Thank you.

see ${ROOTSYS}/tutorials/graphs/zones.C or example below

{
   gROOT->Reset();
   TCanvas c1("c1","multipads",900,700);
   gStyle->SetOptStat(0);
   c1.Divide(1,2,0,0);
   TH1F h1("h1","test1",20,-3,3);
   h1.FillRandom("gaus",100);
   TH1F h2("h2","test2",20,-3,3);
   h2.FillRandom("gaus",1000);

   c1.cd(1);
   gPad->SetTickx(2);
   h1.Draw();

   c1.cd(2);
   gPad->SetTickx(2);
   h2.Draw();
}

Rene

Thank You for quick response.