R help - Mar 2004 - [S] library question

Dear R and S+ People:

Is it possible to take one of the R libraries and put it
into S+ please?

R Windows XP 1.8.1
S+ Version 6.2

Thanks in advance!

Sincerely,
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: hodgess at gator.uhd.edu

In some cases it is possible to port an R *package* to S-PLUS: people have
done both that and the reverse.

If you have some specific examples in mind we may be able to help you
further.  Since you are on Windows, it may not be easy unless you have the
requisite tools (e.g. Visuall C++ and Fortran).


On Wed, 24 Mar 2004, Erin Hodgess wrote:
> Is it possible to take one of the R libraries and put it
> into S+ please?
>
> R Windows XP 1.8.1
> S+ Version 6.2

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

>>>>> "Erin" == Erin Hodgess <hodgess at
gator.uhd.edu>
>>>>>     on Wed, 24 Mar 2004 08:13:01 -0600 writes:
    Erin> Dear R and S+ People: Is it possible to take one of
    Erin> the R libraries and put it into S+ please?

"libraries" (i.e. a collection of compiled code): definitely not
"as is".

However, I presume you mean "packages".
There, it depends if the package only consists of S code (in the
R dialect).  If yes, you often can use most, if not all of the
code in S+. 
But do read the FAQ about S and R differences
and consider the fact that for graphics,
the step from R to S-plus is quite a bit of a downgrade,
and code usually will only work if it was written with back
portability in mind  ("back" : to S+).

{read all of the above with a bit of humour ..}

Note that R is fully open source, so you can always port R
packages that contain compiled code and data sets, and doing so
can be easy -- but may be not at all: 
    The C API of R being quite rich nowadays,
    you may have to work quite a bit on the source before you can
    link the compiled code into S-Plus.

Regards,
Martin

    Erin> R Windows XP 1.8.1 S+ Version 6.2