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book "The New S Language" (the "Blue Book") and many of the
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book "The New S Language" (the "Blue Book") and many of the
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applications. In addition, we have implemented a large part of the
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applications. In addition, we have implemented a large part of the
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functionality from the 1992 book "Statistical Models in S" (the "White
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functionality from the 1992 book "Statistical Models in S" (the "White
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Book").
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Book").
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All the R functions have been documented in the form of help pages in an
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All the R functions have been documented in the form of help pages in
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"output independent" form which can be used to create versions for HTML,
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an "output independent" form which can be used to create versions for
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LaTeX, text etc. A 700+ page Reference Index (a collection of all the
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HTML, LaTeX, text etc.  A 800+ page Reference Index (a collection of
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help pages) can be obtained in a variety of formats. The document "An
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all the help pages) can be obtained in a variety of formats. The
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Introduction to R" provides a more user-friendly starting point. See
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manual `An Introduction to R' provides a more user-friendly starting
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point, and there is an `R Language Definition' manual and more
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specialized manuals on data import/export and extending R. See INSTALL
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INSTALL for instructions on how to generate these documents.
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for instructions on how to generate these documents.
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4. GOALS
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4. GOALS
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Our aim at the start of this project was to demonstrate that it was
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Our aim at the start of this project was to demonstrate that it was
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possible to produce an S-like environment which did not suffer from the
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possible to produce an S-like environment which did not suffer from
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memory-demands and performance problems which S has. Somewhat later, we
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the memory-demands and performance problems which S has.  Somewhat
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started to turn R into a "real" system, but unfortunately we seem to
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later, we started to turn R into a "real" system, but unfortunately we
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have lost a large part of the efficiency advantage in the process, so
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lost a large part of the efficiency advantage in the process, so have
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one of our short-term goals is to revise the memory management mechanism
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recently revised the memory management mechanism and are looking for
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and look for other candidates for optimization.
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other candidates for optimization.
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Longer-term goals include to explore new ideas: e.g. virtual objects and
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Longer-term goals include to explore new ideas: e.g. virtual objects
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component-based programming, and expanding the scope of existing ones
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and component-based programming, and expanding the scope of existing
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like formula-based interfaces. Further, we wish to get a handle on a
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ones like formula-based interfaces.  Further, we wish to get a handle
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general approach to graphical user interfaces (preferably with
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on a general approach to graphical user interfaces (preferably with
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cross-platform portability), and to develop better 3-D and dynamic
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cross-platform portability), and to develop better 3-D and dynamic
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graphics.
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graphics.
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Sincerely,
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Sincerely,