Message-ID: <Pine.GSO.4.31.0104141940200.10451-100000@auk.stats>
Date: 2001-04-14T18:42:09Z
From: Brian Ripley
Subject: loess question
In-Reply-To: <3AD873E1.4F71B1DE@ele.uri.edu>
On Sat, 14 Apr 2001, Edwin Guo wrote:
> Hi,
> I used loess( ) to build a model that has 5 predictors using R of Wndows
>
> version. And it tells me that there is an unknown error. If I decrease
> the number of predictors, then there will be no error. My questions are:
>
> 1. Can loess( ) handle more than 4 predictors.
> 2. If it can not, is there any other smoothing regression technique that
>
> can handle more predictors.
>
> Any comment will be very helpful to me. Thank you in advance!
Well, possibly you are short of points: you need *many* points in 4D
to do non-parametric smoothing (say billions).
You will need send us an example and the exact output to help you, though!
--
Brian D. Ripley, ripley at 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 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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