Re: Coding covariance

Hi Alastair ,

Many thanks, that exactly what I needed!

Best

Celine
> Assuming you want to model lay date as a shraed trait between both
> parents, you probably want to associate both Female and Male
> identities with your pedigree file (!P) and then you could could set
> up the model something like:
>
> #############################
> Laydate ~mu !r !{Female Male!}
>
> 1 1 1
> 0 0 ID 0.1 !S2==1
>
> Female 2
> 2 0 US
> 0.1 #female additive variance
> 0.01 0.1 #female-male covariance, male additive variance
> Female !AINV
> ###############################
>
> Best,
>
> Alastair
>
>
>
> CT wrote:
>> Dear all,
>>
>> I would like to analyse data for pairs of individuals like Female
>> Male LayingDate, and get the additive genetic covariance between
>> males and females. I was told I could use the !{Female Male!}
>> specification, but in the output there is no covariance. So I guess I
>> need to describe the structure of the G matrix, but I'm not sure how
>> to do that.
>>
>> Could anyone help?
>>
>> Many thanks in advance
>>
>> All the best
>>
>>
>>
>>
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>>
>>
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>

-- 
Celine Teplitsky
UMR 5173 MNHN-CNRS-P6 'Conservation des espèces, restauration et suivi des
populations'
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