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Dear R-users, I am attempting to conduct a meta-analysis to investigate the relationship of narrow-sense heritability with population size. In previous work, I have used MCMCglmm to conduct a formal meta-analysis which allowed me to account...

Hi Jarrod, We were finally able to dig into the statistical analysis of our heritability data (as a reminder, we are conducting a meta-analysis investigating heritability in relation to population size) and of course a few questions have come...

Hi Chris, You can find the example code I was talking about here if you haven't tracked it down already: http://127.0.0.1:29918/library/lme4/html/convergence.html Jackie On Wed, Mar 16, 2016 at 3...

Hi Chris, Try checking ?convergence....coincidentally, I was having a similar problem just yesterday. There are some step by step instructions for trouble shooting/double checking convergence warnings. For example, a bit of example code is provided to run your...

Hi Thierry, Thanks for the quick response! I've tried the following variance weight structures: vf1 <- varIdent (form = ~ 1 | cross*age_bin) vf2 <- varExp (form = ~ age_bin | cross) vf3 <- varComb (varIdent(form =~ 1 | cross), varExp (form = ~ age_bin)) vf4 <- varExp...

Hi Thierry, Ok! Thanks for the advice; I'll go ahead with the simpler model. Cheers, Jackie On Tue, Apr 5, 2016 at 4:20 AM, Thierry Onkelinx <thierry.onkelinx at inbo.be> wrote: > Hi Jackie, > > IMHO it is safer...

Hello R-users, I'm attempting to model differences in fork length over time for 4 different cross types of a species of freshwater fish using the most recent version of nlme . Examining plots of the data, fork length increases...

Hello R-users, I'm working on a manuscript which investigates the relationship of various metrics of adaptive potential (additive genetic variation (VA), heritability (h2), and mean-scaled evolvability (IA)) with population size in a common garden experiment using a...

Hi Jarrod and Ken, Hope you had a great New Year! Thanks so much for your responses to my inquiry. Given that we've been using MCMCglmm all along, we'll probably stick with it unless there's a compelling...