Re: Heritability of milk production

Dear Seyed,

The problem is that HYS has been treated as a covariate and not as a
factor.
Append !I to its declaration and run the analysis again.

It would also be better to rescale milk by dividing by say 1000

Also, since probably has many levels, you will probably need to rewrite
the model
as milk ~ mu Age !r animal !f HYS

These changes are in the following.

!WORK 1 # Sets workspace to 1 Gbyte
Milk data analysis
 animal !P
 HYS !I
 Age !I
 milk !/1000
Ped_17bahman.prn.SRT
dat_17bahman.prn
milk ~ mu Age !r animal !f HYS

Hopefully, that will solve your problems

May Jesus Christ be gracious to you in 2008,

Arthur Gilmour, His servant .
 
Mixed model regression mapping for QTL detection in experimental crosses.
Computational Statistics and Data Analysis 51:3749-3764 at
http://dx.doi.org/10.1016/j.csda.2006.12.031

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Received on Mon Feb 08 2008 - 07:46:48 EST