persp and lines()
Jeff -
See the section titled "Value:" and example (2) from help("persp")
for instructions and an example of doing exactly what you ask.
- tom blackwell - u michigan medical school - ann arbor -
On Tue, 17 Feb 2004, 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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