[R-sig-Geo] cross validation gstat

ddepew at sciborg.uwaterloo.ca ddepew at sciborg.uwaterloo.ca
Mon Feb 23 19:27:58 CET 2009


Hi list,
A quick question regarding n-fold validation...
I've seen several papers suggest the LOOCV is too optimistic. Is  
n-fold closer to a "true" validation?
I am assuming that it uses the variogram that is constructed using ALL  
data, so my assumption is that the variogram is not re-fit for each  
n-fold before estimation...




-- 
David Depew
PhD Candidate
Department of Biology
University of Waterloo
200 University Ave W
Waterloo, Ontario, Canada
N2L 3G1

T:(1)-519-888-4567 x 33895
F:(1)-519-746-0614

ddepew at scimail.uwaterloo.ca
http://www.science.uwaterloo.ca/~ddepew



More information about the R-sig-Geo mailing list