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

Stuart Leask stuart.leask at nottingham.ac.uk
Tue Mar 4 11:23:03 CET 2003

Locfit has worked well for me.


Dr Stuart Leask MA MRCPsych, Clinical Lecturer in Psychiatry
University of Nottingham Dept of Psychiatry, Duncan Macmillan House
Porchester Road, Nottingham. NG3 6AA. UK

----- Original Message ----- 
From: "Simon Wood" <simon at stats.gla.ac.uk>
To: "Feng Zhang" <f0z6305 at labs.tamu.edu>
Cc: "R-Help" <r-help at stat.math.ethz.ch>
Sent: Tuesday, March 04, 2003 9:55 AM
Subject: Re: [R] How to estimate or approximate a 3-D surface

> Have you tried looking at packages mgcv or gss? 
> > 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?
> Simon
> _____________________________________________________________________
> > Simon Wood simon at stats.gla.ac.uk        www.stats.gla.ac.uk/~simon/
> >>  Department of Statistics, University of Glasgow, Glasgow, G12 8QQ
> >>>   Direct telephone: (0)141 330 4530          Fax: (0)141 330 4814
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
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