[R] Interpolation using a piecewise linear function in higher dimensions

[Kjetil Kjernsmo]

Dear all,

I am just wondering if anybody has implemented a function that can give a
piecewise linear interpolation in more than 2 dimensions? 
I have looked at the akima package, but I would rather like a piecewise
linear interpolation rather than a spline and while it did the job quite
satisfactory for 2 dimensions, I need to interpolate in at least three
dimensions. If anybody has implemented something like that, and would like
to share the code, I would be very happy. Or if someone knows a library
that can do it that wouldn't be too hard to port (I have searched in
netlib, found one function that was a bit hard to understand and seemed
like overkill, and looked in the GSL documentation without finding
anything appropriate).

Best,

Kjetil
-- 
Kjetil Kjernsmo
Graduate astronomy-student                    Problems worthy of attack
University of Oslo, Norway            Prove their worth by hitting back
E-mail: kjetikj at astro.uio.no                                - Piet Hein
Homepage <URL:http://www.astro.uio.no/~kjetikj/>
Webmaster at skepsis.no 


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