Re: LSM problem
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Re: LSM problem




Dear Yongjun,
I suspect you are not calculating the LSMs properly.

If you fitted the terms as
  
  gfw ~ mu c(fly)
  gfw ~ mu c(line) c(fly)
  gfw ~ mu c(year) c(line) c(fly)
  
  and then used  .pin lines of
  
  (assuming 5 fly, 6 line, 3 yyear)
  
  Flymeans  [1:4 0] 5
  Flymeans  [1:4 0] 10
  Flymeans  [1:4 0] 12
  
  respectively, you will probably get closer values.
  
  Arthur
  
> X-Sender: yongjun@ram.chiswick.anprod.csiro.au
> Date: Thu, 23 Jul 1998 09:44:29 +1000
> To: asreml@ram.chiswick.anprod.csiro.au
> From: Yongjun Li <yongjun.li@chiswick.anprod.csiro.au>
> Subject: LSM problem
> Mime-Version: 1.0
> 
> Dear Arther,
> 
> I am confused when I use ASREML to get LSM of gfw in different fly scores.
> The line and year also have significent effect on the gfw. I got different
> LSM of gfw when I put different fixed effects in the model. The details are
> as the following table.
> 	
> Models				gfw LSM in different fly scores
> 				0	1	2	3	4
> gfw ~ mu fly			2.44	2.52	2.09	2.35	2.40
> gfw ~ mu line fly		2.10	2.11	1.72	2.01	2.01
> gfw ~ mu year line fly	1.92	1.54	1.79	1.97	1.71
> 
> I wonder why the gfw LSMs in different fly scores change so greatly. Are
> they normal or not?
> 
> Regards,
> 
> Yongjun


<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Arthur Gilmour PhD                    email: Arthur.Gilmour@agric.nsw.gov.au
Senior Research Scientist (Biometrics)                 fax: <61> 2 6391 3899
NSW Agriculture                                             <61> 2 6391 3922
Orange Agricultural Institute               telephone work: <61> 2 6391 3815
Forest Rd, ORANGE, 2800, AUSTRALIA                    home: <61> 2 6362 0046

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