Re: heritability from GLM models

From: Arthur <asremlforum_at_VSNI.CO.UK>
Date: Fri, 11 Sep 2009 09:13:37 +0100

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.

Arthur Gilmour

Retired Principal Research Scientist (Biometrics)

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Received on Sat Sep 11 2009 - 09:13:37 EST

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