[R-sig-Geo] Raster memory problem

[Jacob van Etten]

Take a look at setOptions to force disk to disk.

raster will guess if it can do the operation in memory but occasionally underestimates the memory available or required.

Sent from my iPhone

On 12/12/2012, at 15:20, Raffaele Morelli <raffaele.morelli at gmail.com> wrote:

> 2012/12/12 Marie Auger-Methe <marie.augermethe at gmail.com>
> 
>> Dear list,
>> 
>> I am using large raster bricks for my analyses and I am running out of
>> memory. I get the following message:
>> 
>> Error: cannot allocate vector of size 231.0 Mb
>> 
>> and this whether I do all my brick manipulations by loading the brick in
>> R's memory or not (i.e., whether I use the option filename="name of my
>> file").
>> The strangest characteristic of the problem I have is that I get an
>> error message when I handle smaller brick and not when handle larger brick.
>> 
>> I have clean up my computer, defragmented it, increase my virtual
>> memory, etc, and I still get an error.
>> 
>> Any help will be greatly appreciated,
>> 
>> Marie
> 
> 
> Welcome to the band called "Three of us (can't handle such big rasters)"
> ;-)
> 
> -raffaele
> 
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> 
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