[R-sig-Geo] Calculating descriptive stats from many maps

[Rainer M Krug]

Hi

I have 25000 maps, generated by simulation predictions, covering the
same area, and would like to calculate some descriptive stats, like
mean, standard deviation, median, quartiles of all cells, to create a
"variability map".

Is there an easy way of doing this in R?

Thanks,

Rainer

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Faculty of Science
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University of Stellenbosch
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South Africa