[R-sig-Geo] Package for automatic interpolation
Thomas Adams
Thomas.Adams at noaa.gov
Wed Mar 12 13:07:03 CET 2008
Paul,
This is outstanding; thank you very much! BTW, I noticed that when I run
your example that I get:
Warning: singular model in variogram fit
…actually, 2 such warnings with the OK example, and 1 with the UK
example. Are you seeing these too? Otherwise, the results look fine…
Thanks again for your contribution!
Regards,
Tom
Paul Hiemstra wrote:
> Dear r-sig-geo,
>
> In the course of my PhD I have written a R package that performs
> automatic interpolation (kriging) and might be interesting for other
> people. I work on real-time automatic interpolation of radioactivity
> levels. It depends heavily on the gstat pacakge written by Edzer
> (Pebesma, he is my supervisor). If people are interested in this
> package, it can be downloaded from
> http://intamap.geo.uu.nl/~paul/Downloads.html. If you have any comments,
> complaints or suggestions please do not hesitate to e-mail me.
>
> Some sample code:
> library(automap)
> data(meuse)
> coordinates(meuse) = ~x+y
> data(meuse.grid)
> gridded(meuse.grid) = ~x+y
> kr.ok = autoKrige(log(zinc)~1, meuse, meuse.grid)
> plot(kr.ok)
> kr.uk = autoKrige(log(zinc)~sqrt(dist), meuse, meuse.grid)
> plot(kr.uk)
>
> cheers,
> Paul
>
>
--
Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177
EMAIL: thomas.adams at noaa.gov
VOICE: 937-383-0528
FAX: 937-383-0033
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