[R] loess

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue May 25 08:12:36 CEST 2004


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 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 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595




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