Hello Asremlers:
I am using this model:
200-day weight
ani !P
mat !P
pe 6242
sex 2 !A
sy 21 !A
AdG
AdPH
AdRA
AdS
AmS
Dd
w200
PE2_2.prn !MAKE
W2_1.prn
w200 ~ mu sex sy AdG AdPH AdRA AdS AmS Dd !r ani AmS/mat pe .4097
1 1 1
0
ani 2
2 0 US .4081 .0 .287
ani
And I got a negative Var estimate for the maternal effect:
Source Model terms Gamma Component Compnt/StndErr
pe 6242 1688 0.101417 78.3356 2.79
Variance 3224 3196 1.00000 772.413 19.69
ani US=UnStr 1 0.307791 237.741 5.11
ani US=UnStr 1 0.307736E-01 23.7699 1.06
ani US=UnStr 2 -0.136305 -105.284 -21.63
The same happens with a DIAG structure of G,
Could someone explain?
Thank you,
================================
Hugo Montaldo
Research Fellow
Division of Animal Science
University of New England
Armidale, NSW 2351
Australia
Phone 61 2 67 733004
Fax 61 2 67 733275
E-mail hmontald@metz.une.edu.au
http://metz.une.edu.au/~hmontald/
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