[R-sig-Geo] Kriging prediction variances on gstat

[Carlo Cavalieri]

Thanks!


> Il giorno 21 giu 2017, alle ore 10:52, Edzer Pebesma <edzer.pebesma at uni-muenster.de> ha scritto:
> 
> citation("gstat")
> 
> points you to the literature.
> 
>> On 21/06/17 10:16, Carlo Cavalieri wrote:
>> Hi all,
>> 
>> I would like to know how the kriging variance is computed by gstat, because on my analysis I need to use a cell-specific covariate depended scale parameter rather than a unique one.
>> If the overall scale of the origins variance is fixed by the sill of the theoretical variogram model used to make the interpolation I can divide the estimated kriging variance by it and then multiply by the cell specific value, but I wanted to make sure that the sill value (partial sill + nugget) is used.
>> 
>> Thank you
>> Carlo
>>    [[alternative HTML version deleted]]
>> 
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> 
> -- 
> Edzer Pebesma
> Institute for Geoinformatics  (ifgi),  University of Münster
> Heisenbergstraße 2, 48149 Münster, Germany; +49 251 83 33081
> Journal of Statistical Software:   http://www.jstatsoft.org/
> Computers & Geosciences:   http://elsevier.com/locate/cageo/
> 
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