Re: [R] persp and lines()

[Spencer Graves]

     The help file for persp (in R 1.8.1, at least) includes a function 
to "Add to existing persp plot".  Have you tried that?  Alternative, 
have you considered "wireframe" in package lattice? 

     hope this helps.  spencer graves

Jeff Jorgensen wrote:

R-sters:

I'm interested in keeping data plotted in persp to preserve the 
wireframe look, I'd just like to change one of the lines drawn (in 
either the x or y direction) into a different color so that it stands 
out.

Or is there some way to add a line (say, via lines(), or abline()) to 
a persp() plot at the designated x or y that would follow the z 
surface contour?  I could add a line using 2D representations of the 
data, but I'd like to use the perspective plot if possible.

Any advice?

Cheers,

Jeff

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