[R] fit points to plane

[Luca Penasa]

Bert Gunter wrote:
> But probably not a good idea, as there are likely to be some scientfically
> "interesting" local inhomogeneities that an appropriate nonparametric
> smoother (e.g. splines,...) could reveal.
>   

ok... im working on laser scanner cloud of points... the model im 
working with is something like a plane...
i need to project the points over a straight plane so i think it would 
be a good idea to use the best-fitting plane for this.
maybe is there a function to decimate the points?? so i can use this 
function:
http://www.csse.uwa.edu.au/~pk/research/matlabfns/Robust/fitplane.m
starting it on 25000 points give an "out of memory"...
sorry for my english :-)
thanks
> -- Bert Gunter
>
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
> Behalf Of Rolf Turner
> Sent: Tuesday, April 08, 2008 1:16 PM
> To: Luca Penasa
> Cc: r-help at r-project.org
> Subject: Re: [R] fit points to plane
>
>
> On 9/04/2008, at 8:28 AM, Luca Penasa wrote:
>
>   
>> Is there a function for obtaining the best-fitting plane from a  
>> large number of points (something like 25.000 points)?
>>     
>
>
> ?lm
>
>
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