[R] How to estimate or approximate a 3-D surface

[Petr Pikal]

Hi

On 3 Mar 2003 at 22:03, Feng Zhang wrote:

> Hey, R-listers
> 
> Now I am going to estimate or approximate a surface in
> 3-D space given a large enough number of (x,y,z) data sets.
> 
> So for these 3-D data points, is it possible to get a surface
> function, like z=f(x,y) to represent this underlying surface?

I am not sure but interp from akima package shall give you an 
interpolation of your data.
> 
> Thanks for your time and point.
> 
> Fred
> 
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Cheers

Petr Pikal
petr.pikal at precheza.cz
p.pik at volny.cz