Dear Heidi,
I note you are using an old version of ASReml
and that the output appears to relate to a simpler model than the input
you supplied.
The first problem is that your residual matrix is not positive definite.
This could be generating the problems you are having.
You may have partly done this but I would
1. Analyse the two sites separately for a bivariate model.
2. Analyse the traits separately for a two site model
3. Then generate a combined analysis if it seems plausible.
Your model allows for different clonal variances for each site but not
different residual variances
which is likely also to cause trouble.
I would think you penultimate model would allow
bivariate residual error within each site
4 x 100 structure for Site.Trait.clone
If this model worked, then you could split the latter component into
genetic and non-genetic parts.
thanking God for His mercy through Name of Jesus Christ.
Arthur Gilmour PhD
PS. Check out http://www.cargovale.com.au/
mailto:Arthur.Gilmour_at_dpi.nsw.gov.au
Principal Research Scientist (Biometrics)
NSW Department of Primary Industries
Orange Agricultural Institute, Forest Rd, ORANGE, 2800, AUSTRALIA
fax: 02 6391 3899; 02 6391 3922 Australia +61
telephone work: 02 6391 3815; home: 02 6364 3288; mobile: 0438 251 426
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Received on Mon Nov 01 2005 - 10:50:32 EST
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