R help - Sep 2005 - k-d tree for loess

I am exploring the use of loess for oceanographic applications and would
like to plot the locations (longitude and latitude) points where the models
(salinity~temperature*longitude*latitude,parametric="temperature") are
fitted.  Chambers and Hastie(1993) explains the locations are nodes of a
k-d tree. but I cannot find anything about accessing this information.  It
would be useful to superimpose on such plots contours of the weights for at
least one point.  Sample code of drawing such plots would be greatly
appreciated.

Thanks,

Carlisle Thacker

First a warning: loess in R is only loosely related to loess in S, being 
derived from a C implementation (by the same authors).

In R I don't think you can do this.  Those details are never exposed, and 
are hidden in an undocumented C/Fortran workspace.

On Mon, 26 Sep 2005, Carlisle Thacker wrote:
> I am exploring the use of loess for oceanographic applications and would
> like to plot the locations (longitude and latitude) points where the models
>
(salinity~temperature*longitude*latitude,parametric="temperature") are
> fitted.  Chambers and Hastie(1993) explains the locations are nodes of a
> k-d tree. but I cannot find anything about accessing this information.  It
> would be useful to superimpose on such plots contours of the weights for at
> least one point.  Sample code of drawing such plots would be greatly
> appreciated.
>
> Thanks,
>
> Carlisle Thacker
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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