[R] memory size

Prof Brian Ripley ripley at stats.ox.ac.uk
Mon Oct 1 09:29:16 CEST 2007

On Sun, 30 Sep 2007, Kim Donghoh wrote:

> Hello, R users.
> I need help. When I run one of my own functions, I got follwoing error 
> message.
> Error: cannot allocate vector of size 350493 Kb
> So I check the memory size.
>> memory.limit()
> [1] 1610612736
> Is it enough for vector of size 350493 Kb? Am I missing something?

Yes, yes.

1) This is to allocate a vector in addition to what is already allocated
at that time.

2) Although you did not say, this is presumably 32-bit Windows. See what 
?"Memory-limits" has to say about fragmentation of the (nornally) 31-bit 
address space.

A 32-bit Windows system has too small an address space to comfortably 
manipulate 340Mb objects.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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