[R-sig-Geo] arConnect

[Roger Bivand]

On Thu, 11 May 2006, Colin Robertson wrote:

> Hello List,
> 
> Does anyone know if the arcGIS extension called ArConnect (
> http://www.gisvet.org/Documents/GisVet04/RegularPaper/Tait.pdf )
> is released or available anywhere.  I've had a hard time finding anything
> but this one paper.  I'm looking for the most comprehensive tools for kernel
> density estimated surfaces (with cross validation bandwidth selection and
> the boundary correction).

I think the answer is negative - the project was promising, but it is 
difficult to find subsequent references. If you need to integrate with 
ArcGIS, you may find the code at:

http://www.nicholas.duke.edu/geospatial/software/

of use. From there, you can try to see which kernel density functions in R 
suit you best. If you visit http://www.spatstat.org/, you can find plenty 
of information (ksmooth.ppp), and there are alternatives like kernel2d() 
and mse2d() in splancs, but you'll need to look around to find a function 
to meet your needs.

Roger


> 
> Thanks,
> 
> Colin
> 
> 	[[alternative HTML version deleted]]
> 
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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no