Thank you Isobel:
Really I´m very interested in Sichel´s estimator. Best Regards. Juan de Dios Magallanes Quintanar _____ De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] En nombre de Isobel Clark Enviado el: Martes, 30 de Enero de 2007 12:45 p.m. Para: [email protected] Asunto: Re: AI-GEOSTATS: Sichel's t estimator The later papers discuss the variations on the lognormal prompted by Sichel's revivavl of interest in the late 1980s. The actual lognormal basis is not discussed in those papers. I am tracking down a copy of my original paper to add the mathematical addenda on the 1987 paper and will post to the list when it is available. Isobel http://www/kriging.com Eric PIRARD <[EMAIL PROTECTED]> wrote: Hi Peter, Additional work has been done by Sichel and Kleingeld more recently. They should be more available than the original one : Comparative study of three frequency-distribution models for use in ore evaluation Sichel, H S; Kleingeld, W J; Assibey-Bonsu, W J S Afr Inst Min Metall V92, N4, April 1992, P9199 New generalized model of observed ore value distributions H. S. Sichel, C. E. Dohm 8c W. J. Kleingeld, Transactions - InsXitution of Mining & Metallurgy, Section A, 104(May- Aug), 1995, pp AllS-A123 New generalized model of observed ore value distributions Sichel, H.S. / Dohm, C.E. / Kleingeld, W.J., International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, Jan 1996 Eric PIRARD /. UNIVERSITE DE LIEGE (ULg) ArGEnCo Dpt GEMME - Georesources & Mineral Imaging Sart Tilman B52 4000 Liège (Belgium) Tél. : +32-4-3669528 Fax.: +32-4-3669520 http://www.mica.ulg.ac.be <http://www.mica.ulg.ac.be/> + + To post a message to the list, send it to [email protected] + To unsubscribe, send email to majordomo@ jrc.it with no subject and "unsubscribe ai-geostats" in the message body. DO NOT SEND Subscribe/Unsubscribe requests to the list + As a general service to list users, please remember to post a summary of any useful responses to your questions. + Support to the forum can be found at http://www.ai-geostats.org/
