Plotting contour & filled.contour in one graph
Hi Michael and Gabor: GABOR: Prager's '4D' graph looks to me like superimposed contours of both z and zz vs. (x, y), where z is indicated by the colors and pale lines, while "black contour lines are values of zz" (as indicated by the labeling). I once wrote a crudely similar function to prepare contour plots showing any number of z variables vs. (x, y), with each z variable using different colors of contours and filling not with solid colors but with cross hatching at different angles. A reagion of acceptability satisfying multiple inequality constraints would appear as all white, i.e., with no cross hatching, in such a plot. (Unfortunately, I never found the time to get the function adequately dubugged and packaged so others could easily use it.) MICHAEL: The "Addicted to R" web site with it's "R Graph Gallery" are pretty. Is a companion package downloadable from CRAN, or are they still looking for volunteers to create the necessary help files, etc.? Best Wishes, spencer graves
Gabor Grothendieck wrote:
Could you walk us through, in detail, what that graph is showing? On 2/12/06, Michael Prager <Mike.Prager at noaa.gov> wrote:
Besides the answers you already have, you might look at my "4D" graph example (with code) on the R Graphics Gallery: http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=90 I think it does exactly what you are asking, and therefore it might fit your needs with only slight code modification. Mike Prager Abd Rahman Kassim wrote on 2/12/2006 11:12 PM:
Dear All,
I have a question on overlaying a filled.contour (e.g. on soil properties data) and contour (by elevation) in one graph. Both have the same z matrix dimension. I'm able to overlay both graph, but the plots dimension did not overlap well on the same plots. How can I have both filled.contour and contour on the same graph? The commands that I have written are as follows:
filled.contour(0:15,0:10,t(matrix(Total.C,nrow=11,ncol=16)))
contour(0:15,0:10,as.matrix(elev),add=T)
Thanks for anay assistance.
Regards.
Abd Rahman Kassim
Forest Research Institute Malaysia
Kepong 52109
Selangor, MALAYSIA
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-- Michael H. Prager, Ph.D. Population Dynamics Team NOAA Center for Coastal Habitat and Fisheries Research NMFS Southeast Fisheries Science Center Beaufort, North Carolina 28516 USA http://shrimp.ccfhrb.noaa.gov/~mprager/
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______________________________________________ R-help at 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