[R-sig-Geo] R: Intamap and "honoring" original data

Edzer Pebesma edzer.pebesma at uni-muenster.de
Sat Sep 7 15:22:41 CEST 2013

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On 09/07/2013 02:14 PM, r_sig_geo at libero.it wrote:
> Any suggestions?


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>> Hi to all. My problem is to force a Kriging prediction to
>> "honour" original data. This
> is
>> because I need to interpolate values that represent the Bayesian
>> probability that a particular event occurs. For Instance, If for
>> a locality I computed a probability = 1, or p=0.6, I need to
>> possibly keep unchanged these values
> after
>> the interpolation. I  know this is a stretch  according to what
>> Kriging
> really
>> does. As I need to perform interpolation automatically, I'm using
>> package "intamap" that is great! I found the function
>> "unbiasedKrige" that should perform , if I understood well,
>> exactly what  I need. Unfortunately, I find
> out
>> that even by using this function (both using MOK and IWQSEL,
>> tested many
> times
>> with different parameters) the predicted values are still too far
>> from
> original
>> data at the same locations. What can you suggest me? Thanks.
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- -- 
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster
Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251
83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de
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