REFERENCE:
  For a tutorial on S see "Notes on S" by Venables. A copy is kept in
  the ISDS lounge. Get an on-line copy by clicking on "S-plus" in 
  the 215 computing homepage.

EMACS:
  First copy the lines from 
	~pm/215/emacs-215 (if you are on isds)
	~peter/emacs/emacs-215 (if you are on acpub)
  into your .emacs file.
  If you don't have a .emacs file yet:
	cp ~pm/215/emacs-215 .emacs

  To start S from within emacs just type:
	M-x S
  Open a file, say bod.s,  to edit your S functions. Change it to
  S-mode by typing 
	M-x s-mode
  You can ``submit'' commands from bod.s to the S process by the ff
  commands (typed when bod.s is the current buffer):
	C-c C-n		submits one line at a time
	M-C-x		submits the function in which the curor is
			positioned
	C-c C-r    	submits the marked region
	C-c C-l		submits a whole file

  You can change commands which you type in bod.s, and resubmit them..