{
  TH1F h ("h1", "histogram title", 100, -5.0 , 5.0);  // Create a 1D histogram object of floats
  // Filling up histogram with random events:
  TRandom rGen (0); // Creates a random number generator object with seed 0
  for (int i=0; i<10000; i++) { // Repeat 10000 times
    float x = rGen.Gaus(0.0, 1.0); // Generate a random number according to the gaus distribution with mean=0, sigma=1
    h.Fill(x); // Fill the histogram with x
  }
  h.Draw(); // Draw the histogram
}