1 SCAN
  Syntax: SCAN id[&idb] filename[(arg)] Y|N [nevt1 nevt]
  where   id        is the ntuple identifier
          idb       is the (optional) secondary identifier
          filename  is the name of a file containing the Comis subroutine
                    that should be called
          arg       is an optional argument for the subroutine
          nevt1     is the first event number to scan
          nevt      is the number of events to scan

  Loops  over all the  events in an  Ntuple and calls  a function which is
  contained in `filename'. Alias  for `NTUPLE SCAN'.  See HELP NTUPLE SCAN
  for more details.


