range from fit.variogram
That is right, Mark; the adjustment factor is dependent on the model used (Gaussian, it seems, in your case); e.g. for the exponential it would be 3 * a. And of course depends also on how you define practical range in the cases where the variogram reaches the sill asymptotically. -- Edzer
Mark Connolly wrote:
I think the range determined by fit.variogram is not the "practical" range as mentioned in Applied Spatial Data Analysis with R. Do I have this right? To get the range used for interpolation, I adjust the range (eg. 3^0.5 * range)?
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Edzer Pebesma Institute for Geoinformatics (ifgi), University of M?nster Weseler Stra?e 253, 48151 M?nster, Germany. Phone: +49 251 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de http://www.52north.org/geostatistics e.pebesma at wwu.de