{ gStyle->SetTitleSize(0.31, "XY"); gStyle->SetTitleOffset(.1, "XY"); gStyle->SetTitleColor(2, "XY"); gStyle->SetLabelSize(0.08, "XY"); TH1D *h = new TH1D("h", "h", 10, 0, 10); h->GetXaxis()->SetTitle("X-axis"); h->GetYaxis()->SetTitle("T[a]"); TCanvas *c1 = new TCanvas("c1", "c1", 700, 700); c1->Divide(1,3,0,0); c1->cd(1); h->Draw(); c1->cd(2); h->Draw(); c1->cd(3); h->Draw(); c1->Print("test1b.png"); }