Dear Lydon,
I also had some trouble with stacking Layers in the Raster package. Try
to use a 32 bit version of R. Sounds weired but in my case the stacking
with the Raster package was much faster using the Raster Package on a 32
bit - R Version. This is what Robert Hijmans once wrote me when I
Hi Swen,
Thanks for the suggestion. That brings to mind an earlier problem I
had with a different functions substituting values on large rasters,
and I got around it by writing the following lines into the code:
if(raster:::.toDisk() != TRUE) {
setOptions(todisk = TRUE)
cat("We don't
Lyndon,
The reason might be that the large rasters trigger raster to processing by
chunk (writing to disk) whereas the smaller file is considered small enough
for processing in RAM. That may not be the case, and the OS may start
swapping memory (using disk as RAM) which is slow. If this happens, yo
Hi Robert,
Thanks for the response. I will continue to keep forcing a write to
disk to prevent this from occurring.
Based on this post, and another earlier in the year, I looked a bit
more into other methods for calculating available RAM, at least for
Linux and Mac systems. I understand from so
