Both the rgdal and raster packages can read from raster files "on demand"
without creating external copies, I would have a closer look at them.

Also, the GDAL VRT format is a great way to tile a raster without copying
and GDAL itself has tools for that.

Cheers, Mike

On Monday, June 4, 2012, Matthias Bösling wrote:

> Dear list,
>
> does anyone knows how to work with big spacial image with a size of more
> than 1 GB? I tried to tile the image in multiple smaller tiles but the
> multiple call of the function 'writeRaster' of the package 'raster' leads
> to crashes of the RGui. How do you solve the problem with big images or
> are ther no possiblities to work in r with big images yet?
>
>
> Thanks and best regards,
> Matthias Bösling
>
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-- 
Michael Sumner
Hobart, Australia
e-mail: mdsumner@gmail.com

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