Hello everyone, I am sorry if this has already been asked but I can't find it. I want to superpose two lattice plots, namely a levelplot and a contourplot of two different variables with the same x-y scale. I found information about panel.superpose but it does not seem to correspond to what I want (I have two different variables, not groups of the same variable)
How can I do this? Is there a way to concatenate the two trellis objects and plot that? Simple example using simulated data: x=seq(-5,5,length.out=100) y=seq(-2,2,length.out=60) mat1=cos(x)%*%t(cos(y)) mat2=cos(x)%*%t(sin(y)) levelplot(mat1) contourplot(mat2) I would like both plots to appear superposed. PS: accessory question, for the enthusiast ;). When data in contained in a matrix and x-y coordinates in separate vectors, as above, is there a way to get level/contourplot to use x and y as the coordinates vectors other than by "unrolling" the matrix in a data.frame: x y mat 1 1 0.125 1 2 0.1367 1 3 0.2345 .... and using mat ~ x*y ? Thank you in advance. Sincerely, JiHO --- http://jo.irisson.free.fr/ ______________________________________________ R-help@stat.math.ethz.ch 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.
