Dear R users, I have the following problem. I plot a SpatialPixelsDataFrame object with spplot and I need to add a contourplot of another spatial variable. To be more precise, I plot the SpatialPixelsDataFrame of the mean precipitation over Germany with coloured regions and I want to overlay the isolines of the 500, 1000 and 1500 m height above sea level. Of course I can plot the lines as SpatialLines using the sp.layout argument to spplot, but so I lose the labels on the lines. And I want the height above sea level to be labelled just as it is labelled in a contour plot. Is it possible to achieve that with lattice?
I am still new to lattice, so I beg Your excuse in case I am asking something trivial. I googled a lot and tried a lot of things, but none worked. I tried with contour, it does work with Spatial objects, but unfortunately contour does not seem work with lattice. And the lattice equivalent contourplot does not recognise Spatial objects. I am already out of ideas. I am looking forward to Your replies. Any suggestions will be appreciated. Best regards, Martin ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
