Hello All, If fi(z) are valid, then f(z) = Sum(wi*fi(z),i) is valid if the weights wi valid. Furthermore, f(g(z)) is valid for several g's:
1) g(z) = |z| is an isotropic model 2) g(z) = zx (or zy) is a zonal model 3) g(z) = Sqrt((zx/ax)^2 + (zy/ay)^2) is a geometric model Are there other g's that still give valid models? Thanks for any insight on this! Roger Roger L. Bilisoly, Ph.D. Geohydrology Department Sandia National Laboratories PO Box 5800 MS 0735 Albuquerque, NM 87185-0735 Phone: 505-844-5165 Fax: 505-844-7354 E-mail: [EMAIL PROTECTED] -- * To post a message to the list, send it to [EMAIL PROTECTED] * As a general service to the users, please remember to post a summary of any useful responses to your questions. * To unsubscribe, send an email to [EMAIL PROTECTED] with no subject and "unsubscribe ai-geostats" followed by "end" on the next line in the message body. DO NOT SEND Subscribe/Unsubscribe requests to the list * Support to the list is provided at http://www.ai-geostats.org
