Re: AI-GEOSTATS: anisotropic nugget
There is software around which will allow you to define different nugget effects in different directions, but I would not put any bets on the outcome! It looks like you have a short range component which cannot be seen because of the spacing of your data. Try adding a spherical component with a shorter range and a component sill of the right size to make the nugget effect equal in all directions. I would. Isobel Clark http://geoecosse.bizland.com __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- * 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
AI-GEOSTATS: anisotropic nugget
Hi everyone: I am not sure if my question is too basic, if it is could somebody recomend a text for solving it? I am trying to made a model for a logarithmic data set, those having a great variance. Both, the covariogram for original data, and the covariogram for normalized data show lower values for the nugget in the direction of maximun continuity and a considerable higher effect in two directions of high anisotropy. I think this is anisotropic nugget effect and is releated with the variability of the data, is it? If I am right, how shall a anisotropic nugget be model? Shouldn´tthe nuggetbe a constant? I will appreciatte any advice Do you Yahoo!? Faith Hill - Exclusive Performances, Videos, & more faith.yahoo.com
