ASREML: Modelling semivariogram

From: Thomas Bishop <t.bishop_at_USYD.EDU.AU>
Date: Tue, 30 Oct 2007 17:18:18 +1100


Dear ASREML Users,


I am attempting to use ASREML to analyse spatial data that is from an
observational study rather than a comparative experiment. More
specifically I am trying to fit a geostatistical model based on fixed
effects with the spatial coordinates and fitting of a correlation model
to the spatially correlated residuals. I am interested in the soil
water content. This is basically the same as classical universal
kriging or kriging with trend. I am new to ASREML and am having real
difficulties extracting anything other than the regression coefficients.


My sample code based on the recipes of Luis Apiolaza Recipes is:










water ~ mu xcoord ycoord !r units

0 0 0 1

0 102 IEUC 0.1



Any help to fix my code would be appreciated. I just want to extract
the regression coefficients and semivariogram parameters. My data is


Thanks in advance,





Received on Sat Oct 30 2007 - 17:18:18 EST

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