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

Xavier Fernández i Marín xfim.ll at gmail.com
Tue Sep 13 12:10:19 CEST 2011


Rolf Turner vas escriure el dia dt, 13 set 2011:

> 
> I tried your example code on my laptop running Ubuntu Linux,
> and of course it ran --- just as it should (*has* to!) without any
> problem; no errors thrown.
> 
> This sort of thing should not/does not/cannot happen under
> ``normal circumstances''.  There has to be something wrong
> somewhere in your setup.  Either your hardware or your software
> is flaky in some way.
> 
> I.e. it is not an "R problem".
> 
> How you track down the flakiness is unfortunately way beyond me.

Ok, thank you. 

More elements: In python the same algorithm does not show this strange
behaviour.

Any other clue?

-- 
-  Xavier  -



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