You missed a lot of indications, most prominently the task view

http://cran.r-project.org/web/views/Optimization.html


On 11/03/2012 07:18, Renger van Nieuwkoop wrote:
Dear all

I was wondering, if there are reasons for R-Users to use (commercial) solver 
packages like GAMS, AMPL, Matlab, etc.
These packages can solve all kind of mathematical optimization problems like 
(non-) linear problems, mixed complementarity problems, etc.

Why I want to know? GAMS corporation developed a R package to send data from 
GAMS to R (or vice versa). It is called gdxrxw.
I use this package a lot for my network models I solve with GAMS, sending the 
results from GAMS to R for plotting, generating tables in LaTeX and statistical 
analysis (see some of my post on blog.modelworks.ch).
However, until now, for my personal use, I don't use the package the other way 
around (R ->  Gams).
I am writing a small article on this interface and was wondering if there are 
situations, where R-Users would be grateful for having the possibility to 
interact with solver software.
Any reaction would be very much appreciated.

Renger


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blog.modelworks.ch

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--
Brian D. Ripley,                  rip...@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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