Re: ASREML: Modelling semivariogram

Dear Thomas,

I enclose an externded parameter file containg 5 models and some notes.

The residuals are written to the .yht file (these would have spatial
correlation in your base model).

The 'units' effects are written to the .sln file.

The 100 points do not allow clear separation of nugget variance from
spatial correlation - several
models suggest no nugget variance.

The correlated effects can be placed in the G structure or the R
structure.

The directional variogram is displayed and written to the .res file.

I have not included prediction but that is possible when the correlation
is in the G structure
(and by fitting missing values and postu;lating missing data at desired
predict points if the spatial component is
in the R structure)

May Jesus Christ be gracious to you,

Arthur Gilmour, His servant .

Mixed model regression mapping for QTL detection in experimental crosses.
Computational Statistics and Data Analysis 51:3749-3764 now available at
http://dx.doi.org/10.1016/j.csda.2006.12.031

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Principal Research Scientist (Biometrics)
NSW Department of Primary Industries
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