Hi,

 

Semi-variogram is defined as sum of observation difference between pairs
of certain range of distance divided by 2N.

 

            Gamma(h) = 1 / 2N(h) (Sum (z(u)-z(u+h))^2)

 

You can take look 'GSLIB: Geostatistical Software Library and User's
Guide' Oxford University Press (CV Deutsch & AG Journel). 

 

I'm new to R, so I don't really know spatial analysis package, but I'm
sure there is. If not you can use GSLIB, which is almost as
user-unfriendly as R - at least for me.

 

Hope this helps.

 

 

 


SANGHOON KANG, PhD

Microbial Ecology & Functional Genomics Group

Environmental Science Division

Oak Ridge National Laboratory

p.865.574.7321  f.865.576.8543

http://sanghoonkang.wo.to <http://sanghoonkang.wo.to/> 

http://www.esd.ornl.gov/people/kang

 


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