[R] overlaying a contour line in a levelplot

Hello there, I am creating a series of images using levelplot but I also want to overlay a contour for a particular value as reference. Here is the levelplot command for the image: print(levelplot(d~x+y,data=t,cuts=20,scales=list(draw=F),xlab=NULL,ylab= NULL,col.regions=heat.colors(100)[100:1

Re: [R] overlaying a contour line in a levelplot

On Wednesday 20 April 2005 09:16, Jorge Ahumada wrote: > Hello there, > > I am creating a series of images using levelplot but I also want to > overlay a contour for a particular value as reference. Here is the > levelplot command for the image: > > print(levelplot(d~x+y,data=t,cuts=20,scales=list(