Davide
Unless you get software which allows you to code
samples by 'individual', the simplest way is to output
the calculated semi-variogram for each individual and
then use a spreadsheet to combine them, weighted by
the number of pairs in each case.
Isobel Clark
http://geoecosse.bizland.com
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Dear List,
sorry that you had to wait for this summary.
I post the answers that I received in this Mail with the corresponding
names and email addresses. The answers were help for us to decide to do
kriging in 2-dimensional layers. However, so far do not have final results
but it seems to work f