#include "TFile.h"
#include "TCanvas.h"
#include "TH1.h"
#include "TF1.h"

void testMacro()
{
  TCanvas *c1 = new TCanvas();
  TH1F* h = new TH1F("h","",100, -3, 3);
  TF1 *gaus = new TF1("gaus","exp(-0.5*x*x)",-3, 3);
  h->FillRandom("gaus",10000);
  h->Draw();
  c1->Print( "gaus.gif" );
}