In the "Introduction and preliminaries" the "An Introduction to R" manual
says about R: "... Among other things it has ... a well developed, simple
and effective programming language (Called 'S') ... ". Now I'm a little
confused. This means that language S is a component part of R? And S is not
free? But R is free? Or the mentioned S is only "a free implementation" of
the "true S"? Can anybody explain this? I want to know.

Thank you!

-- 
Iurie Malai
Senior Lecturer
Ion Creanga Moldova Pedagogical State University

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