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dreamscape
2002 Aug 01
4
What does persp() return?
I want to plot some 3D points on top of the grid produced by persp().
On 2/22/01, Paul Murrell <paul at stat.auckland.ac.nz> wrote in R-help:
> In S-Plus, persp() returns a value that can be used to transform 3D
> locations to 2D, but this sort of thing is not (yet) available in R.
But persp() does return something (in R-1.5.1): a 4x4 matrix which in the C
code is called the