polarisation/Pol01/plotResults.C

0001
0002 void plotResults(const char* fname = "polar.root") {
0003   // Open a ROOT file and read histograms
0004   TFile myfile(fname,"READ");
0005   TH1D* histo[12];
0006
0007   for (Int_t j=0; j<12;j++)
0008     histo[j] = (TH1D *) myfile.Get(Form("h%d",j+1));
0009
0010   // Produce a plot
0011   TCanvas *c1 = new TCanvas("c1","The Pol01 example",1200,900);
0012   gStyle->SetOptStat(0);
0013   c1->Divide(4,3);
0014
0015   for (Int_t j=0; j<12;j++) {
0016     c1->cd(j+1);
0017     histo[j]->ls();
0018     histo[j]->DrawCopy();
0019   }
0020   c1->Update();
0021 }