[R] orthogonal distance regression package?

2012-02-29 Thread Adam Waytz
Hello, I am extremely new to R and have found some leads to this question in the archives, but I am still a bit uncertain. I am looking for an R package to carry out orthogonal distance regression. I found some answers regarding Deming regression and Total Least Squares regression, but I was

Re: [R] orthogonal distance regression package?

2012-02-29 Thread Bert Gunter
On Wed, Feb 29, 2012 at 7:53 AM, Adam Waytz a-wa...@kellogg.northwestern.edu wrote: Hello, I am extremely new to R and have found some leads to this question in the archives, but I am still a bit uncertain. I am looking for an R package to carry out orthogonal distance regression.  I

Re: [R] orthogonal distance regression package?

2012-02-29 Thread Adam Waytz
In the age of google, I have found that concepts such as these are more complex than what Wikipedia provides. Going far beyond a cursory search, it appeared to me there are subtle differences between these terms. I was hoping this knowledgeable community could provide insight on an R package

Re: [R] orthogonal distance regression package?

2012-02-29 Thread Mark Leeds
Hi: I can't find it anywhere on the internet but I have a book that shows that, as long as the SVD of the X matrix can be obtained, then the coefficient solution to TLS ( least angle regression ) is only a function of the eigenvectors. Therefore, principal components can be used to obtain the

Re: [R] orthogonal distance regression package?

2012-02-29 Thread David Reiner
Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Mark Leeds Sent: Wednesday, February 29, 2012 12:37 PM To: Adam Waytz Cc: r-help@r-project.org; Bert Gunter Subject: Re: [R] orthogonal distance regression package? Hi: I can't find it anywhere

Re: [R] orthogonal distance regression package?

2012-02-29 Thread Adam Waytz
Cc: r-help@r-project.org; Bert Gunter Subject: Re: [R] orthogonal distance regression package? Hi: I can't find it anywhere on the internet but I have a book that shows that, as long as the SVD of the X matrix can be obtained, then the coefficient solution to TLS ( least angle regression