plotting kernel density estimations

Dear List, thank you for your last reply! Sorry, but here's another 
one.I've 4 Kernel Density Estimations (with splancs: spkernel2d()) and 
want to plot them altogether (2x2).In this case the spplot-function 
doesn't work very well, because only one legend/range of value grouping 
is possible.Also the par(mfrow=c(2,2) and layout(matrix(c(1,2,3,4), 2, 
2)) doesn't work and plots only one over all subplots.Any suggestions? 
Best regardsEva--

(Please do not use HTML in your postings, just plain text)

Do not combine par(mfrow=c()) and layout() - use either one or the other 
unless you actually want to mix them up. Using par(mfrow=c()) should be 
sufficient. In fact, if your density maps are for the same variable but 
with different bandwidths, you need to look at the at=, cuts=, and/or 
col.regions= arguments to spplot(). If for different variables, then your 
choice of par(mfrow=c()) looks OK.

Roger

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Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
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