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S is a language and system for data analysis, particularly exploratory
analysis, and for research on new techniques in statistics and
statistical computing.  It emphasizes interactive analysis and the use
of graphical techniques.

The main strengths of S are the simplicity and generality of the
language, the emphasis on interaction and graphics, the
automatically-maintained, self-describing general data structures and
the facilities for the extension of S to new techniques.  Generally, S
is more powerful than other statistical systems in the range of things
it can express and in the facilities for extending this range.  It also
contains a large number of specific statistical, graphical and other
analyses.

S will run on an up-to-date UNIX system (Version 7, 4.1BSD, System III or V)
on a sizable machine.  A VAX is preferable, since large amounts of
program memory are available and addressable.  S will also run on PDP
11/70 or PDP 11/45 systems, but in these environments analysis is
limited to datasets of a few thousand data values at most.

S is available from

	Bell Laboratories
	Computer Information Service
	600 Mountain Avenue
	Murrray Hill, NJ 07974

Enclose your US Mail address, and they will send further details.

  Richard Becker, John Chambers