Overlaying trellis xyplot on contourplot
On 12/13/07, Seth W Bigelow <sbigelow at fs.fed.us> wrote:
Friends: I wish to overlay data points on a contour graph. The following example produces a nice contour plot, but I have not mastered the concept of using panel functions to modify plots. Can someone show me how to overlay the data points (given after contour plot statement) on the contourplot?
MASS has an example (Figure 4.3); see
file.show(system.file("scripts/ch04.R", package = "MASS"))
-Deepayan