[R] Error cannot allocate vector of size...

Duncan Murdoch murdoch at stats.uwo.ca
Tue Jan 8 12:41:37 CET 2008

Rod wrote:
> Hello,
> I have a memory problem when I run package WinBUGS with R (2.6.1).
> Until now I have been using a Pentium IV 3.2Ghz computer with 512Mb of
> RAM memory (with Windows XP Pro SP2), and I hadn't had any problem.
> Now I have a new computer with the following characteristics: Intel
> Core 2 duo 2.33Ghz and 3Gb of RAM memory (with Windows XP Pro SP2) and
> when I am running the same R syntax I receive the following error
> message:
> "Error: cannot allocate vector of size 216.0 Mb".
> This is an extract of my R syntax:
>> memory.limit(4000)
>> simu.BYM<-bugs(data, inits, parameters, model.file="Modelo.txt", n.chains=3, n.iter=200000, n.burnin=20000, n.thin=180, debug=FALSE, DIC=FALSE, digits=5, codaPkg=FALSE, bugs.directory="c:/Archivos de programa/WinBUGS14", working.directory=NULL)
> Error: cannot allocate vector of size 216.0 Mb
> I have tried:
> -Change size of virtual memory inside Windows XP
> -change the R memory settings
> -run from DOS (R CMD BATCH...)
> -reviewed the R Windows FAQ and R-Help.
> but I haven't be able to find a solution !
Could you try R-patched?  I recently fixed a minor bug that could have 
symptoms like this. Under certain conditions it would miscalculate the 
amount of available memory.  You can download a copy from 

Duncan Murdoch

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