[R] spatial statistics on images, any packages?

[Roger Bivand]

On Wed, 16 Nov 2005, Koen Hufkens wrote:

> Hi list,
> 
> Is there a package that covers the evaluation of spatial statistics on 
> images and not on point data? I've converted an image matrix to x, y 
> coordinates and a measurement value but evaluation with the package 
> spdep (not really designed for image data I suppose) is unworkable. Any 
> suggestions?

It depends what you are trying to do, also please consider re-posting on 
the R-sig-geo list. Yes, constructing a neighbour list for a large image - 
millions of points and thus potentially very many neighbours - is not what 
spdep is dimensioned for. Advice will depend on your research problem.

> 
> Regards,
> Koen
> 
-- 
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