More simply perhaps you can get any column by name or number like any
data.frame - this gives all pixel values for the first attribute
(assuming first colname is the default - use names(dem) to find out):
dem$band1
dem[[1]]
On Fri, Aug 5, 2011 at 12:04 PM, Nick Matzke wrote:
> Nevermind, got
Nevermind, got it: as.matrix(dem)
On 8/4/11 5:06 PM, Nick Matzke wrote:
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 colo
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
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