Retrieving Objects from Disk

In the http://root.cern.ch/drupal/content/retrieving-objects-disk, one should change:
root[] TH1F *hpx1; f1->GetObject(“hpx;1”,hpx)
into:
root[] TH1F *hpx1; f1->GetObject(“hpx;1”, hpx1)

Done. Thanks