[R] Surface Graphic

Bill Simpson W.Simpson at gcal.ac.uk
Fri May 3 11:48:13 CEST 2002

> It is simple using packages deldir and tripack.  But then you need to do
> something to interface with persp (notice the use of TriGrid in IDL in your
> url).  Interpolation by package akima has already been mentioned, but that
> same a number of problems and I would suggest loess or kriging is
> preferable: all are covered in spatial statistics books (and the spatial
> statistics chapter of Venables & Ripley) and are available in R packages.
Thanks for the pointer.
> > If you figure this out I would be very interested in seeing a simple
> > working example.
> There are published ones in the references above.
Thanks. It would be really nice to see a persp 3D plot example somewhere
in the docs for packages deldir and tripack (I just looked and didn't see 
any--all examples are 2D plots).


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