R: AI-GEOSTATS: Extreme values?

2001-12-14 Thread claudio.cocheo
Dear Chaosheng, > Thanks. I think the sampling density is good enough to reveal the spatial > structure, and the extreme samples are located within the "hot spots". The > problem is that the few values are still extremely high within the "hot > spots". This may be what the "nugget effect" means.

Re: AI-GEOSTATS: help on GS+ and sciencedirect

2001-08-07 Thread claudio.cocheo
Hi, > I have the 3.1 version of GS+ and everything is going ok, but when I >ask for the program to make the color maps i get these > crazy >squares and nothing related to what I want. Also the > example data that >comes with the program also gives these crazy

AI-GEOSTATS: sill and data variance

2001-02-26 Thread claudio.cocheo
Dear all, it's the first time I write to this interisting mailing list, My question is: what does it mean if the sill of the variogram is higher (a little higher, 10%) of the variance of data? Have I to fit my model as far as the distance at which the model reach the variance of data, or there is