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*To*: asreml@chiswick.anprod.CSIRO.AU*Subject*: repeated measures*From*: "Dave Johnson" <djohnson@lic.co.nz>*Date*: Tue, 5 May 1998 14:14:03 +1200*Sender*: owner-asreml

I am new to asreml so sorry if this is repetitive. I am working through the Wolfinger rat data p121-124 of the manual. The CS and AR(1) examples are fine. Now for RCL I do not get the log L as given in table 8.1 p 124. My understanding is that we are fitting random terms of b1+b2*t where t represents time of measurement (=1,2,3,4,5 obtained from lin(Trait)). So the var-cov structure of b1,b2 is specified in the variance structure "2 O US 5 -1.6 1.3". The output from this run only gives two variance components (other than random error) and if you replace the variance structure with a diagonal matrix "2 0 DIAG 5 1.3" you get the same result. So where has the covariance between b1 and b2 gone ? Or what am I doing wrong. I have also tried to change the fixed model to include a linear trend on time but it doesn't like removal of "Trait" or its replacement by "mu". I just get "..error in model factor list". Are there any other annotated examples of repeated measures data ? Any help appreciated. Dave Johnson.

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