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<HEAD>
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<TITLE>R: About R</TITLE>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<LINK REL=STYLESHEET TYPE="text/css" HREF="R.css">
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</HEAD>
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<BODY>
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<h1>About <img class=toplogo src="logo.jpg" alt="[R logo]"></h1>
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<HR WIDTH="100%">
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<h2>Introduction</h2>
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<p> <B>R</B> is a computer language not entirely unlike the S language
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developed at AT&T Bell Laboratories by Rick Becker, John Chambers
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and Allan Wilks. The two languages are implemented quite differently,
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but bear enough superficial resemblence that users should be able to
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switch between the two with relative ease.
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Currently the software is undergoing active development. Discussion of
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the development process is carried out on the "r-devel" mailing list.
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See the <a href="resources.html">resources page</a> for details on how
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to subscribe to this list.
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<P>
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We have implemented <B>R</B> in what we hope is a very portable
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fashion and in way which requires relatively little in the way of
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machine resources. Implementations exist for many
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for many members of the Unix family of operating systems,
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including <B>AIX</B>, <b>FreeBSD</b>, <b>GNU/Linux</b>,
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<b>HPUX</b>, <b>Irix</b>, <b>MacOS X</b>, <b>Solaris</b>, and
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<b>Tru64</b>. In addition there is a version for <b>Microsoft Windows</b>
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(9x, ME, NT4, 2000, XP).
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<h2>Present Status</h2>
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The present version implements most of the functionality in the 1988 S
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book (the "Blue Book") and many of the applications. In addition, we
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have implemented much of the functionality from the 1992 S book (the
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"White Book"). In particular we have versions of "lm", "glm", "aov"
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and "loess", and versions of "gam" and "tree" are available in
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contributed packages.
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There are several manuals in the distribution, plus a comprehensive
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set of help pages in "output independent" form which can be used to
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create versions for HTML, LaTeX, text, PDF etc.
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</BODY>
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</HTML>
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