Could you please verify (with zerodist) whether you have duplicate observations in your data set (i.e., multiple observations sharing a common spatial location)?
On 08/10/2010 03:06 PM, kad wrote: > > Dear all, > I want to do 10 kriging maps with packages automap.So ,I use > autofitvariogram for fitting the experimental variogram then I use the > command autokrige. > I have this error: > > In getModel(initial_sill - initial_nugget, m, initial_range, ... : > An error has occured during variogram fitting. Used: > nugget: 0 > model: Ste > psill: 1.13727235894792 > range: 6.5336666581637 > kappa: 10 > as initial guess. This particular variogram fit is not taken into account. > Gstat error: > Error in fit.variogram(experimental_variogram, model = vgm(psill = psill, : > fit.method 7 will not work with zero distance semivariances; use another > fit.method value > > I change the option fit.method =7 by differents number betwen 1 and 6 but I > have always this error. > Do you can help me > > KAD > > > > -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de http://www.52north.org/geostatistics e.pebe...@wwu.de _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
