void test()
{
	TCanvas *cc = new TCanvas("cc","cc",1200,800);
	TGaxis *axis3 = new TGaxis(0.9,0.5,0.1,0.5,1,3.3E6,510,"-");
	axis3->SetName("xaxis");
	axis3->SetTitle("Events (1/GeV/#it{c})");
	axis3->SetLabelFont(42);
	axis3->SetLabelSize(0.02);
	axis3->SetTitleFont(42);
	axis3->SetTitleSize(0.02);
	axis3->SetTitleOffset(2.0);
	axis3->SetExponentOffset(-0.1,-0.5,"X");
	axis3->Draw();
	cc->Print("ax.png");
}