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 <jorism...@gmail.com>:

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 <pneuh...@pneuhaus.de>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

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