Hello I believe there have been a couple of posts on this topic, but let me add this one. I need a way to perform leave out one cross validation on a bunch of data. I believe Automap is the way to go forward for Kriging and i am using it . Could someone suggest me a way to do the same with splines that may use any existing spline package for R. Thanks Sandeep Patil Dept of Geography Texas A & M University, College Station -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/Spatial-Interpolation-Cross-Validation-tp6812194p6812194.html Sent from the R-sig-geo mailing list archive at Nabble.com.
Spatial Interpolation Cross Validation
2 messages · srp868, Paul Hiemstra
On 09/20/2011 12:59 PM, srp868 wrote:
Hello I believe there have been a couple of posts on this topic, but let me add this one. I need a way to perform leave out one cross validation on a bunch of data. I believe Automap is the way to go forward for Kriging and i am using it . Could someone suggest me a way to do the same with splines that may use any existing spline package for R. Thanks Sandeep Patil Dept of Geography Texas A & M University, College Station -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/Spatial-Interpolation-Cross-Validation-tp6812194p6812194.html Sent from the R-sig-geo mailing list archive at Nabble.com.
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Hi Sandeep, For a project I wrote a few functions which smooths cross validation across spatial packages, e.g. using Tps (thin plate splines) from the fields package together with automap. See: https://stat.ethz.ch/pipermail/r-sig-geo/2010-December/010363.html I sent you the scripts off-list, which includes example code. good luck, Paul
Paul Hiemstra, Ph.D. Global Climate Division Royal Netherlands Meteorological Institute (KNMI) Wilhelminalaan 10 | 3732 GK | De Bilt | Kamer B 3.39 P.O. Box 201 | 3730 AE | De Bilt tel: +31 30 2206 494 http://intamap.geo.uu.nl/~paul http://nl.linkedin.com/pub/paul-hiemstra/20/30b/770