Re: [R] What does LOESS stand for?
The closest "explanation" of the term "loess" I can find is in "Local regression models" by Cleveland, W. S.; Grosse, E. & Shyu, W. M. (Chapter 8 of Statistical models in S (1992) by Chambers, J. M. & Hastie, T. J.) ... local regression models is called "loess," which is short for "local regression," and was chosen as the name since a loess is a deposit of fine clay or silt ..., and is a surface of sorts. (p. 314). Tal Galili Sent by: r-help-boun...@r-project.org 05/31/2010 12:39 PM To Peter Neuhaus cc r-help@r-project.org Subject Re: [R] What does LOESS stand for? Hi Peter, If this article is correct: http://www.r-bloggers.com/abbreviations-of-r-commands-explained-250-r-abbreviations/ Loess stands for: [LO]cally [E]stimated [S]catterplot [S]moothing Best, Tal Contact Details:--- Contact me: tal.gal...@gmail.com | 972-52-7275845 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r-statistics.com (English) -- On Mon, May 31, 2010 at 12:33 PM, Peter Neuhaus wrote: > Dear R-community, > > maybe someone can help me with this: > > I've been using the loess() smoother for quite a while now, and for > the matter of documentation I'd like to resolve the acronym LOESS. > Unfortunately there's no explanation in the help file, and I didn't > get anything convincing from google either. > > I know that the predecessor LOWESS stands for "Locally Weighted > Scatterplot Smoothing". But what does LOESS stand for, specifically? > "Locally Weighted Exponential Scatterplot Smoothing"? As far as > I understand LOESS is still a local polynomial regression, so that > would probably make no sense. > > Any help appreciated! > > Thanks in advance, > > Peter > > > __ > R-help@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. > [[alternative HTML version deleted]] __ R-help@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. [[alternative HTML version deleted]] __ R-help@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.
Re: [R] What does LOESS stand for?
Hi Peter, If this article is correct: http://www.r-bloggers.com/abbreviations-of-r-commands-explained-250-r-abbreviations/ Loess stands for: [LO]cally [E]stimated [S]catterplot [S]moothing Best, Tal Contact Details:--- Contact me: tal.gal...@gmail.com | 972-52-7275845 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r-statistics.com (English) -- On Mon, May 31, 2010 at 12:33 PM, Peter Neuhaus wrote: > Dear R-community, > > maybe someone can help me with this: > > I've been using the loess() smoother for quite a while now, and for > the matter of documentation I'd like to resolve the acronym LOESS. > Unfortunately there's no explanation in the help file, and I didn't > get anything convincing from google either. > > I know that the predecessor LOWESS stands for "Locally Weighted > Scatterplot Smoothing". But what does LOESS stand for, specifically? > "Locally Weighted Exponential Scatterplot Smoothing"? As far as > I understand LOESS is still a local polynomial regression, so that > would probably make no sense. > > Any help appreciated! > > Thanks in advance, > > Peter > > > __ > R-help@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. > [[alternative HTML version deleted]] __ R-help@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.
Re: [R] What does LOESS stand for?
On 31-May-10 15:52:56, David Winsemius wrote: > On May 31, 2010, at 11:44 AM, Peter Neuhaus wrote: > >> Thanks a lot... >> >> ... makes it a bit difficult to explain, though... > > We drink no wine before its time. Somewhat like trying to explain > splines to non-technical types: > > http://www.duckworksmagazine.com/03/r/articles/splineducks/splineDucks.h > tm > -- > David. >> Peter Spline-ducks are sophisticated technology compared with what some of us used to do in the 1960s. The spline was a long narrow strip of springy metal. On the drawing-board, lay down the paper and plot the points. Then tap in fairly sturdy "draper's" pins at the points. Then lay the spline (on its edge) between the pins. Then (carefully) draw by hand a curve along the line of the spline. Even today, this could constitute a very easily grasped explanation of splines for non-technical types! Ted. >> Quoting Joris Meys : >> >>> This is the paper on which the loess algorithm is based in general: >>> http://www.econ.pdx.edu/faculty/KPL/readings/cleveland88.pdf >>> >>> The explanation about the origin of the term LOESS is given on page >>> 597. >>> >>> Cheers >>> Joris >>> >>> On Mon, May 31, 2010 at 11:33 AM, Peter Neuhaus >>> wrote: >>> Dear R-community, maybe someone can help me with this: I've been using the loess() smoother for quite a while now, and for the matter of documentation I'd like to resolve the acronym LOESS. Unfortunately there's no explanation in the help file, and I didn't get anything convincing from google either. I know that the predecessor LOWESS stands for "Locally Weighted Scatterplot Smoothing". But what does LOESS stand for, specifically? "Locally Weighted Exponential Scatterplot Smoothing"? As far as I understand LOESS is still a local polynomial regression, so that would probably make no sense. Any help appreciated! Thanks in advance, Peter >> > > > David Winsemius, MD > West Hartford, CT > > __ > R-help@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. E-Mail: (Ted Harding) Fax-to-email: +44 (0)870 094 0861 Date: 31-May-10 Time: 17:08:25 -- XFMail -- __ R-help@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.
Re: [R] What does LOESS stand for?
On May 31, 2010, at 11:44 AM, Peter Neuhaus wrote: Thanks a lot... ... makes it a bit difficult to explain, though... We drink no wine before its time. Somewhat like trying to explain splines to non-technical types: http://www.duckworksmagazine.com/03/r/articles/splineducks/splineDucks.htm -- David. Peter Quoting Joris Meys : This is the paper on which the loess algorithm is based in general: http://www.econ.pdx.edu/faculty/KPL/readings/cleveland88.pdf The explanation about the origin of the term LOESS is given on page 597. Cheers Joris On Mon, May 31, 2010 at 11:33 AM, Peter Neuhaus wrote: Dear R-community, maybe someone can help me with this: I've been using the loess() smoother for quite a while now, and for the matter of documentation I'd like to resolve the acronym LOESS. Unfortunately there's no explanation in the help file, and I didn't get anything convincing from google either. I know that the predecessor LOWESS stands for "Locally Weighted Scatterplot Smoothing". But what does LOESS stand for, specifically? "Locally Weighted Exponential Scatterplot Smoothing"? As far as I understand LOESS is still a local polynomial regression, so that would probably make no sense. Any help appreciated! Thanks in advance, Peter David Winsemius, MD West Hartford, CT __ R-help@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.
Re: [R] What does LOESS stand for?
Thanks a lot... ... makes it a bit difficult to explain, though... Peter Quoting Joris Meys : This is the paper on which the loess algorithm is based in general: http://www.econ.pdx.edu/faculty/KPL/readings/cleveland88.pdf The explanation about the origin of the term LOESS is given on page 597. Cheers Joris On Mon, May 31, 2010 at 11:33 AM, Peter Neuhaus wrote: Dear R-community, maybe someone can help me with this: I've been using the loess() smoother for quite a while now, and for the matter of documentation I'd like to resolve the acronym LOESS. Unfortunately there's no explanation in the help file, and I didn't get anything convincing from google either. I know that the predecessor LOWESS stands for "Locally Weighted Scatterplot Smoothing". But what does LOESS stand for, specifically? "Locally Weighted Exponential Scatterplot Smoothing"? As far as I understand LOESS is still a local polynomial regression, so that would probably make no sense. Any help appreciated! Thanks in advance, Peter __ R-help@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. -- Joris Meys Statistical Consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control Coupure Links 653 B-9000 Gent tel : +32 9 264 59 87 joris.m...@ugent.be --- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php __ R-help@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.
Re: [R] What does LOESS stand for?
This is the paper on which the loess algorithm is based in general: http://www.econ.pdx.edu/faculty/KPL/readings/cleveland88.pdf The explanation about the origin of the term LOESS is given on page 597. Cheers Joris On Mon, May 31, 2010 at 11:33 AM, Peter Neuhaus wrote: > Dear R-community, > > maybe someone can help me with this: > > I've been using the loess() smoother for quite a while now, and for > the matter of documentation I'd like to resolve the acronym LOESS. > Unfortunately there's no explanation in the help file, and I didn't > get anything convincing from google either. > > I know that the predecessor LOWESS stands for "Locally Weighted > Scatterplot Smoothing". But what does LOESS stand for, specifically? > "Locally Weighted Exponential Scatterplot Smoothing"? As far as > I understand LOESS is still a local polynomial regression, so that > would probably make no sense. > > Any help appreciated! > > Thanks in advance, > > Peter > > __ > R-help@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. > -- Joris Meys Statistical Consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control Coupure Links 653 B-9000 Gent tel : +32 9 264 59 87 joris.m...@ugent.be --- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php [[alternative HTML version deleted]] __ R-help@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.
Re: [R] What does LOESS stand for?
See http://en.wikipedia.org/wiki/Loess . It is not an acronym: the derivation is given in the reference given by ?loess, p.314. On Mon, 31 May 2010, Peter Neuhaus wrote: Dear R-community, maybe someone can help me with this: I've been using the loess() smoother for quite a while now, and for the matter of documentation I'd like to resolve the acronym LOESS. Unfortunately there's no explanation in the help file, and I didn't get anything convincing from google either. I know that the predecessor LOWESS stands for "Locally Weighted Scatterplot Smoothing". But what does LOESS stand for, specifically? "Locally Weighted Exponential Scatterplot Smoothing"? As far as I understand LOESS is still a local polynomial regression, so that would probably make no sense. Any help appreciated! Thanks in advance, Peter -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ R-help@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.
[R] What does LOESS stand for?
Dear R-community, maybe someone can help me with this: I've been using the loess() smoother for quite a while now, and for the matter of documentation I'd like to resolve the acronym LOESS. Unfortunately there's no explanation in the help file, and I didn't get anything convincing from google either. I know that the predecessor LOWESS stands for "Locally Weighted Scatterplot Smoothing". But what does LOESS stand for, specifically? "Locally Weighted Exponential Scatterplot Smoothing"? As far as I understand LOESS is still a local polynomial regression, so that would probably make no sense. Any help appreciated! Thanks in advance, Peter __ R-help@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.
