{ 
   TCanvas *c1 = new TCanvas("c1", "c1",0,0,700,500); 
   c1->Divide(2,2); 
                                                                                
   c1->cd(1);
   gPad->SetLeftMargin(0.12); 
   gPad->SetBottomMargin(0.12); 
   gPad->SetLogy();
   TH1 *h1 = new TH1F("h1","h1",100,0,1);
   h1->SetMinimum(1e-4);
   h1->SetMaximum(6e-1); 
   h1->GetXaxis()->SetTitle("Weight"); 
   h1->GetYaxis()->SetTitle("Events"); 
   h1->GetXaxis()->SetTitleOffset(1.2); 
   h1->GetYaxis()->SetTitleOffset(1.2); 
   h1->Draw(""); 
                                                                                
   c1->cd(2); 
   gPad->SetLeftMargin(0.12); 
   gPad->SetBottomMargin(0.12); 
   TH1 *h2 = new TH1F("h2","h2",100,0,1); 
   h2->SetMinimum(0);
   h2->SetMaximum(0.042); 
   h2->GetYaxis()->SetTitle("Events"); 
   h2->GetXaxis()->SetTitle("Likelihood"); 
   h2->GetXaxis()->SetTitleOffset(1.2); 
   h2->GetYaxis()->SetTitleOffset(1.2); 
   h2->Draw(""); 
                                                                                
   c1->cd(3); 
   TH1 *h3 = new TH1F("h3","h3",100,0,1); 
   h3->GetXaxis()->SetTitle("X Title 3"); 
   h3->GetYaxis()->SetTitle("Y Title 3"); 
   h3->GetXaxis()->SetTitleOffset(1.); 
   h3->GetYaxis()->SetTitleOffset(1.); 
   h3->Draw(""); 
                                                                                
   c1->cd(4); 
   TH1 *h4 = new TH1F("h4","h4",100,0,1); 
   h4->GetXaxis()->SetTitle("X Title 4"); 
   h4->GetYaxis()->SetTitle("Y Title 4"); 
   h4->GetXaxis()->SetTitleOffset(1.); 
   h4->GetYaxis()->SetTitleOffset(1.); 
   h4->Draw(""); 
                                                                                
   TCanvas *c2 = new TCanvas("c2", "c1",0,550,700,500); 
   c2->Divide(3,1); 
                                                                                
   c2->cd(1); 
   TH1 *h1 = new TH1F("h1","h1",100,0,1); 
   h1->GetXaxis()->SetTitle("X Title 1"); 
   h1->GetYaxis()->SetTitle("Y Title 1"); 
   h1->Draw(""); 
                                                                                
   c2->cd(2); 
   TH1 *h2 = new TH1F("h2","h2",100,0,1); 
   h2->GetXaxis()->SetTitle("X Title 2"); 
   h2->GetYaxis()->SetTitle("Y Title 2"); 
   h2->Draw(""); 
                                                                                
   c2->cd(3); 
   TH1 *h3 = new TH1F("h3","h3",100,0,1); 
   h3->GetXaxis()->SetTitle("X Title 3"); 
   h3->GetYaxis()->SetTitle("Y Title 3"); 
   h3->Draw(""); 
}