[R-sig-Geo] Distances in geoR package

[Ernesto Jardim]

giovanna jona lasinio wrote:
> Dear all, this may be a stupid question, but I wasn't able to find an
> answer in the FAQ and in the mail archive.
> I have a huge amount of  data, 644 sites for 30 different  times, which
> coordinates are expressed in decimal longitude and latitude, I'd like to
> simply compute the empirical variogram and use "variofit" to estimate
> variogram's parameters for each time. The "variog" function uses
> euclidean distances and then it is not appropriate for lon-lat
> coordinate. Is there any way to change the distance type in "variog"? Or
> which information are necessary to "variofit" in order to estimate
> variogram's parameters?
> 
> Thanks for any help
> Giovanna Jona Lasinio
> 
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Hi,

I think the best solution is to transform your coordinate system into utm.

Regards

EJ