Re: heritability from GLM models

From: Bruce Southey <bsouthey_at_GMAIL.COM>
Date: Fri, 11 Sep 2009 09:13:20 -0500

On 09/11/2009 03:13 AM, Arthur wrote:
> Dear Agus,
> I am not aware of an appropriate error variance to assume for the
> underlying scale
> for Poisson data. The mechanism would be the same as for a binomial
> variable if a suitable variance was known.
> The logit, probit and CompLogLog link functions map binomial
> proportions onto a scale with variances of pi^2/3, 1 and pi^2/6
> respectively.
> But I am unaware of anagous results for Poisson link functions.

One option:
Foulley, J . L., D. Gianola, and S. Im. 1987. Genetic evaluation of
traits distributed as Poisson-binomial with reference to reproductive
traits. Theor. Appl. Genet. 73:870.

Received on Sat Sep 11 2009 - 09:13:20 EST

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