dataspy++ for RCS Detectors
  ===========================
  R. Michaels,  updated Dec 4, 2001

  PURPOSE:  A lightweight online "spy" on raw data from RCS detectors.
            Allow to print out or make simple histograms of data.
            Makes event displays.  Creates "root" output file with ntuple.

  On ADAQ account go to the stable directory ~adaq/dataspy/stable 
  run by typing ./dataspy (with or without arguments, see below).
  If you forget this, just type "dataspy" from anywhwere, it
  will remind you.

  Examples of how to run dataspy:
     ./dataspy         (this analyzes data online using ET system,
                        which is painfully slow with 0.3Hz cosmics)

     ./dataspy -f /adaql2/data4/e99114_2445.dat.0
               (this analyzes the CODA file for run 2445)

     ./dataspy -f  /adaql2/data4/e99114_2445.dat.0 -s
               (the "-s" on the end makes dataspy wake up in 
                "single event" mode, as opposed to "fast" mode).

  After you quit, a root file "dataspy.root" is available with all
  the histograms and an ntuple of leadglass and veto detector data.
 
  Report problems, suggestions to R. Michaels.