Message-ID: <Pine.A41.4.33.0107081126290.102450-100000@homer19.u.washington.edu>
Date: 2001-07-08T18:35:53Z
From: Thomas Lumley
Subject: Interaction with R
In-Reply-To: <994615633.3b48a1513f16d@imp.free.fr>
On Sun, 8 Jul 2001 brunels at free.fr wrote:
> Hello eve-R-ybody,
>
> i'd like to know where i can find some documentation about how calling
> foreign programs from a R function and use the results obtained.
> I mean, make an other program compute the value of a complex formula and use
> the result as an object in the R function.
It depends on what the other program is and exactly what you want to do.
* Under Windows it may be possible to use the DCOM server (on CRAN in the
Software|"Other" section)
* If the program can read from standard input and write to standard output
you can probably use connections (help(Connections), or see the "Data
Import/Export Manual"
* You can dynamically load compiled C, C++ or Fortran code into R and call
these routines directly.
* If you can get the program to write output to a file you can then read
the file.
-thomas
Thomas Lumley Asst. Professor, Biostatistics
tlumley at u.washington.edu University of Washington, Seattle
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