Digby I see where you are coming from on this, but in fact the sill is composed of those pairs of samples which are independent of one another - or, at least, have reached some background correlation. This is why the sill makes a better estimate of the variance than the conventional statistical measures, since it is based on independent sampling.
Isobel http://geoecosse.bizland.com/whatsnew.htm --- Digby Millikan <[EMAIL PROTECTED]> wrote: > While your talking about sill's being the global > variance which I read > everywhere, > isn't the global variance actually slightly less > than the sill, as the > values below the > range of the variogram are not included? i.e. the > sill would be the global > variance > when you have pure nugget effect. > > > > > * By using the ai-geostats mailing list you agree to > follow its rules > ( see > http://www.ai-geostats.org/help_ai-geostats.htm ) > > * To unsubscribe to ai-geostats, send the following > in the subject or in the body (plain text format) of > an email message to [EMAIL PROTECTED] > > Signoff ai-geostats
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