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*To*: asreml@chiswick.anprod.CSIRO.AU*Subject*: ASREML ??*From*: Trevor Hancock <thancock@waite.adelaide.edu.au>*Date*: Wed, 15 Oct 1997 18:46:16 +0930 (CST)*Sender*: owner-asreml

Arthur(et al), Thanks for the free publicity earlier in the week. I certainly found your response most helpful, so I hope some others found it useful also. I have two further matters. The first is rather trivial but confirmation of my observation would be appreciated. I have some data which has missing values for the response variate yield ( indicated by *'s ). When I read it into ASREML it indicates the #miss is zero. More careful inspection indicates the # of records retained = total observations - #missing etc and it appears that the *ing values have been recognised appropriately, as stated in the manual. Is this in fact correct and there is a minor bug in #miss shown?? My second ? is less trivial (I think). I have data where I expect a model with common intercept but different slope would seem likely given the biology. That is, at time zero it would be expected all treatments start at the same value and gradually separate depending on the treatments. Thus I fit yield ~ mu variate #for a common line then yield ~ mu variate factor.variate #common intercept different slope. This second model appears strange and in fact bears little similarity to REML (in GENSTAT). Whereas the model yield ~ mu variate factor factor.variate #different intercept and slope, and the initial model appear reasonable and are consistent with REML. Is there any reason why this second model should "upset" ASREML ?? Note eventually I want to fit a much more complicated model involving pol(), spl() and other factors but if the simple 2nd model doesn't give me what I expect I'm a little reluctant to head for the "deep water" and beyond, without some advice from the lifeguard(s). Cheers, Trevor. ************************************************************************ TREVOR W HANCOCK, Biometry, Dept. of Plant Science, Univ. of Adelaide. Waite Institute, PMB 1 Glen Osmond, South Aust.,AUSTRALIA. 5064 Tel: (08) 8303 7288 International: 61 8 8303 7288 Fax: (08) 8303 7109 International: 61 8 8303 7109 email: thancock@waite.adelaide.edu.au ************************************************************************

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