Hi All, I'm having difficulty making a contour plot a would like some help.
A standard contourplot can be made by having an x,y, and some matrix (shape x*y) with contents: x = 1:10 y = 1:10 cont <- matrix(runif(100,min=1,max=2),nrow=10,ncol=10) filled.contour(x,y,cont) Looks very nice. Sometimes data comes in a different format however. Basically an x and an y, and a vector z with all realisations of some f(x,y). The only R way of making a contour plot out of this I can find is: library(lattice) x = runif(100,min=0,max=10) y = runif(100,min=0,max=10) z = runif(100,min=0,max=2) contourplot(z ~ x * y, region = TRUE) which is pretty ugly. And I don't think it needs to be. Does anyone know a way to make plots of the first type with data of the second type? Increasing the number of points to see if that fits better: x = runif(1000,min=0,max=10) y = runif(1000,min=0,max=10) z = runif(1000,min=0,max=2) contourplot(z ~ x * y, region = TRUE) ...hang on that doesn't plot anything: not my main question, but if anyone cares to explain why that is.. cheers, Dennis -- View this message in context: http://r.789695.n4.nabble.com/contour-plots-tp2264113p2264113.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
