[R] Matrix multiplication gives different results some of the times (NaN)

[Xavier Fernández i Marín]

Ben Bolker vas escriure el dia dt, 13 set 2011:

>   You mentioned that you had compiled R yourself.
> Can you replicate this with a stock R binary, i.e. from a 
> Red Hat or Ubuntu repository?  If not, can you give details of
> your compilation setup, especially if you are using a specialized
> or optimized linear algebra library (BLAS)?

I was using the Atlas libraries. I have recompiled R with the reference
blas and lapack and the problem has disappeared. So at least now I have a
clue on where to look for.

Thank you all of you,

-- 
-  Xavier  -