[TUHS] [tuhs] Early statistical software in Unix

[Nelson H. F. Beebe]

Doug McIlroy kindly sent me contact information for John Chambers,
co-author of the cited book about the S system.  I have just heard
back from John, who offered a link to his summary paper from the
2020 HOPL conference proceedings

	S, R, and data science
	https://doi.org/10.1145/3386334

and reported that S was licensed to AT&T Unix customers only in binary
form, and that the original source code may no longer exist.

That is a definitive answer, even if not the one that I was hoping to
find.

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- Nelson H. F. Beebe                    Tel: +1 801 581 5254                  -
- University of Utah                                                          -
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