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 ###################################################################### Attention:\ This e-mail message is privileged and confid...{{dropped:9}}
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. -- 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 ###################################################################### Attention:\ This e-mail message is privileged and confid...{{dropped:9}} ______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Is there a function for obtaining the best-fitting plane from a large number of points (something like 25.000 points)? Thank you... Luca -- Email.it, the professional e-mail, gratis per te: http://www.email.it/f Sponsor: Gioca con i Supereroi Marvel sul cellulare! Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=7752&d=8-4
Rolf Turner wrote:> > 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)? > > > ?lmwhat does it mean?> > > ###################################################################### > Attention:This e-mail message is privileged and confidential. If you > are not theintended recipient please delete the message and notify the > sender.Any views or opinions presented are solely those of the author. > > This e-mail has been scanned and cleared by > MailMarshalwww.marshalsoftware.com > ###################################################################### >-- Email.it, the professional e-mail, gratis per te: http://www.email.it/f Sponsor: Scopri le tue passioni con Leonardo.it! * Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=7614&d=8-4
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 > > > ###################################################################### > Attention:\ This e-mail message is privileged and confid...{{dropped:9}} > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > >-- Email.it, the professional e-mail, gratis per te: http://www.email.it/f Sponsor: Scopri le tue passioni con Leonardo.it! * Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=7613&d=8-4