[R] R on Sharp Zaurus 5500?

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Mon Jul 8 10:50:51 CEST 2002

Dirk Eddelbuettel <edd at debian.org> writes:

> On Sun, Jul 07, 2002 at 07:28:50PM +0200, Peter Dalgaard BSA wrote:
> > Andrew Robinson <andrewr at uidaho.edu> writes:
> > 
> > > Hello,
> > > 
> > > has anyone tried to get R running on a Sharp Zaurus 5500?
> > > 
> > > Andrew
> > 
> > Not that I know of. We tried getting R to run on the ARM chip
> > (w/Debian Linux) without success at some point. There were some nasty
> > FPU incompatibilities (appeared to be non-IEEE compliant ->
> > mishandling of NA -> downhill from there...).
> Well, most of it compiles. 
> In the current setting, R 1.5.1 fails with exhausted memory on ppr.f; this
> might be overcome by turning the default optimization (-O2) off (to -O0).
> Most of the problems we had were, IIRC, with the c/c++ and fortran
> interaction for some of the add-on packages. The main R core could work well
> enough on the Zaurus, but it might need some tender love, care and tweaking.

Dirk, help me get this straight: Do the cross-compile libraries for
the Zauron work better than those for the the Debian/ARM port? Or did
both improve substantially since last we played with it? (One of which
seems not unlikely since they appear to have Java running). Otherwise,
be very suspicious and check that it not only runs, but also gives
correct results for cases with missing values...

>From my peeks at the Zauron docs, it would seem that you'd need to
write a new graphics driver for the embedded-Qt stuff since there's no
ordinary X server running on the machine. If that would work on
generic Qt to make up a "kR" interface (KDE-look+feel compatible),
that could be well worth it anyway.


   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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