[R] JAGS/BUGS on gene expression data

Whit Armstrong armstrong.whit at gmail.com
Mon Mar 14 17:28:07 CET 2011


There are better alternatives for big data than to revert to C.

http://code.google.com/p/pymc/
http://github.com/armstrtw/CppBugs (still alpha)

-Whit


On Mon, Mar 14, 2011 at 11:06 AM, nblarson <nblarson at gmail.com> wrote:
> Has anybody had issues running MCMC (either BUGS or JAGS) on data sets of
> this magnitude (ie 30k x 20-30).  I've been trying to run a hierarchical
> random effects model on expression data but R completely stalls out on jobs
> run on 32bit R on our server (doesn't respond...then eventually crashes out
> with an exception fault).  Would using 64bit R help with JAGS?  (As far as I
> know there's only a 32bit build of BRugs so BUGS is out) Currently the
> server doesn't have 64 bit JAGS installed but I've put in a request.  It
> seems that compiling the model is what's crashing R at this point.
>
> My last resort is to hardcode everything in C, but I'd like to avoid that.
>
> --
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