Re: [R] loess

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From: Prof Brian Ripley (ripley@stats.ox.ac.uk)
Date: Tue 25 May 2004 - 16:12:36 EST


Message-id: <Pine.LNX.4.44.0405250707460.29454-100000@gannet.stats>

On Tue, 25 May 2004, Rupen Shrestha wrote:

> When I was running the function "loess(y~x, span=0.0020)", I got a warning
> message "k-d tree limited by memory. ncmax= 4231"
>
> Does that mean the function has not been computed correctly ? If it has not,
> is there any way to adjust it so that it will do correctly ?

It was computed a little inaccurately. You can alter many things: see
?loess.control, especially its first item. *However*, that span is so
small that this makes little sense, with too few neighbours for any
visually apparent smoothing.

-- 
Brian D. Ripley,                  ripley@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, UK                Fax:  +44 1865 272595

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