On 12/07/11 18:08, Mathieu Rajerison wrote:
> @Rolf
>
> You mentioned:
> xy <- as.matrix(as.data.frame(raster.xy(as.owin(Im))))
> v <- lookup.im <http://lookup.im/>(Im,xy[,1],xy[,2])
>
> Just for information, can you tell me in which package the functions 
> lookup.im <http://lookup.im> and raster.xy can be found?

They are in the "spatstat" package; lookup.im() is undocumented 
(considered to be an ``internal''
function); raster.xy() is documented.

     cheers,

         Rolf

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