On 12/13/07, Seth W Bigelow <[EMAIL PROTECTED]> 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
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