[R] levelplot colorkey

[Jeff Jorgensen]

Dear R'ers,

I've scanned available documentation and the web, but I can't seem to 
figure out where I've gone wrong in adding numbers to scale the colorkey in 
levelplot (Lattice package).  For example,

levelplot(z, contour=T, labels=T, cuts=10, region=T,...
            colorkey=list(T, space="bottom",
                           at=seq(0,2000,length=20),
                                 labels=list(as.character(seq(0,2000,length=20))))
)

If I leave out the colorkey command the levelplot function works great, if 
I put it in I get the following error mesage:

Error in draw.colorkey(x$colorkey) : length(col) must be length(at)-1

Is there a way to find out length(col) (BTW, does col=color?) so that I can 
readjust the label locations (at=...), or have I completely missed 
something obvious that would quickly fix this up?


Cheers,

Jeff Jorgensen

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Jeff Jorgensen

Center for Limnology                             jcjorgensen at wisc.edu
University of Wisconsin Madison           ph (608) 263-2304
680 North Park Street                           fx (608) 265-2340
Madison, Wisconsin 53706                http://limnology.wisc.edu

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