Extracting standardized residuals from a gamma(log) glmmTMB
Hi Aoibheann, That seems to be a bug in glmmTMB since the Gamma family does include a variance function. I think we need to change this line of code https://github.com/ glmmTMB/glmmTMB/blob/f9388401f2173b774b16d63d31fff9 a1dbc3c48f/glmmTMB/R/methods.R#L483 Can you add an issue on GitHub (https://github.com/glmmTMB/glmmTMB/issues)? If not, I could do it. cheers, Mollie
On Tue, Oct 17, 2017 at 3:54 PM, Aoibheann Gaughran <gaughra at tcd.ie> wrote:
Hi all,
I have run a glmmTMB with (family="Gamma",link="log") and now want to
validate the model, but am unable to extract the standardised residuals
with sresid <- resid(mod1tmb, "pearson"). It produces the following error
message:
Error in residuals.glmmTMB(mod1tmb, "pearson") :
variance function undefined for family ?Gamma?; cannot compute Pearson
residuals
Would anyone be able to assist me with this?
Many thanks,
--
Aoibheann Gaughran
Behavioural and Evolutionary Ecology Research Group
Zoology Building
School of Natural Sciences
Trinity College Dublin
Dublin 2
Ireland
Phone: +353 (86) 3812615
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