I've run out of ideas for a simple solution, so... Does anyone know of a package that can compute directional correlograms? The spatial package seems to work for all directions, Usage: correlogram(krig, nint, plotit = TRUE, ...) but I don't know how to modify the spatial package (if required) or how I can arrange/filter the data to be able to compute directional correlograms so that I may use the spatial::correlogram(). I've used the spatmast package in S+ (but need to be able to do this in R). Thanks, Jeff. -- Jeff D. Hamann Forest Informatics, Inc. PO Box 1421 Corvallis, Oregon 97339-1421 phone 541-754-1428 fax 541-752-0288 jeff.hamann at forestinformatics.com www.forestinformatics.com