Hello,
Try:
SCHABENBERGER O PIERCE FJ (2002) Contemporary statistical models for
the plant and soil sciences. CRC Press, Boca Raton, Florida.
They compare theoretical semivariograms between treatments through non
linear regression. They use something like to the extra sum of squares.
Details
Try Lark, R.M. 2000. A comparison of some robust estimators of the variogram for use
in soil survey. European Journal of Soil Science 51, 137-157. This paper gives a
method of testing wether a variogram is 'correct' or not - ie not overestimated due to
outliers etc.
Pat Bellamy
Mrs Pat
Mark
We have about 13 data sets available on our free
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ranges from 27 to 20,000.
Download from http://geoecosse.bizland.com/softwares
and find details and references for most of them at
