Inclusion of units as a random term in an ASREML linear model causes small
differences in the maximum likelihood, the parameter estimates and the shape
of the variogram. My purpose in inculding units was to separate the
spatial and nugget components of the residual, not to change the model.
What's going on?
_____________________________________________________________________
N.W. Galwey,
Faculty of Agriculture,
University of Western Australia,
Nedlands, WA 6709, Australia.
Tel.: +61 9 380 1959 (direct line)
+61 9 380 2554 (switchboard)
Fax: +61 9 380 1108
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