[R] summing values as image

[Jeff D. Hamann]

I'm trying to summarize irregularly spaced data (in data.frame with x,y,z)
and need to sum (not average as the as.image() function in fields does)
and I'm not sure if there is a function in on of the packages or if I'm
going to need to string a few functions together like fields::as.image()
and fields::image.count() to get what I need or if I should simply write
my own.

suggestions?


-- 
Jeff D. Hamann
Forest Informatics, Inc.
PO Box 1421
Corvallis, Oregon 97339-1421
phone 541-754-1428
fax 541-752-0288
jeff.hamann at forestinformatics.com
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