Re: ASReml spatial analysis

From: <brian.cullis_at_INDUSTRY.NSW.GOV.AU>
Date: Thu, 3 Dec 2009 17:23:47 +1100

Dear Mstoehr
THere are numerous reasons why this may occur and you have not supplied
sufficient detail for me to provide an accurate and helpful reply. If you
fit the same models at the genetic level as well as at the error level
then the AR model parameter estimates should be the same. This means that
the model at the GxE level needs to be a diag() model for all the genetic
terms. I can send you numerous examples of such code....

warm regards

Brian Cullis|Research Leader, Biometrics &
Senior Principal Research Scientist |
Industry & Investment NSW | Wagga Wagga Agricultural Institute | Pine
Gully Road | Wagga Wagga NSW 2650 |
PMB | Wagga Wagga NSW 2650
T: 02 6938 1855 | M: 0439 448 591 | F: 02 6938 1809 | E:,au
W: |

Visiting Professorial Fellow
School of Mathematics and Applied Statistics
Faculty of Informatics
University of Wollongong

Faculty of Agriculture, Food & Natural Resources
The University of Sydney

Adjunct Professor
School of Computing and Mathematics
Charles Sturt University

ASReml spatial analysis

03/12/2009 06:42 AM

Sent by:
ASReml users discussion group <ASREML-L_at_DPI.NSW.GOV.AU>
Please respond to ASREML-L

Hi: I am running a multiple-site spatial analysis for a forest tree
progeny test (using Rowfac and Colfac) and the ARs for each site are
different in comparison to those I get if I just run individulal sites
(using AR and AR). What is the reason for that?

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Received on Fri Dec 03 2009 - 17:23:47 EST

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