[R-sig-Geo] histogram of SpatialGridDataFrame values

[Nick Matzke]

Hi,

So I've loaded a DEM into a SpatialGridDataFrame, and I can 
plot it etc.

However, I would like to make a histogram of the pixel 
values (or just a random sample of the pixel values) to help 
make decisions about the color scheme etc.  Is there an easy 
way to do this?

Cheers!
Nick


-- 
====================================================
Nicholas J. Matzke
Ph.D. Candidate, Graduate Student Researcher

Huelsenbeck Lab
Center for Theoretical Evolutionary Genomics
4151 VLSB (Valley Life Sciences Building)
Department of Integrative Biology
University of California, Berkeley

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Principles of Phylogenetics: Ecology and Evolution
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When people thought the earth was spherical, they were 
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