[R-meta] Spatial-temporal meta-analysis

[Viechtbauer Wolfgang (SP)]

Dear Rafael,

It is still not really clear to me what want to do. You say that you want to "use coefficient of variance (CV) and number of replicates in rma.mv function of metafor package to built a random model controlling phylogenetic signal". I have no idea what that means, so I cannot say if this approach is appropriate or not.

When you say that you want to examine if effect sizes vary in space and time, then why not include some measure of time and some measure of location in the model as predictors/moderators?

Best,
Wolfgang

>-----Original Message-----
>From: Rafael Rios [mailto:biorafaelrm at gmail.com]
>Sent: Thursday, 09 November, 2017 14:51
>To: Viechtbauer Wolfgang (SP); r-sig-meta-analysis at r-project.org; Michael
>Dewey
>Subject: Spatial-temporal meta-analysis
>
>Dear Wolfgang and All,
>
>I am still working on an approach to evaluate variations in effect sizes
>in space and time. I have several replicates of effect sizes (Fisher's Z)
>in different populations and/or breeding seasons for each species. My
>hypothesis is that effect size varies in space and time. Then, I want to
>use a random model to evaluate if a estimative of variation in effect
>size is high when compared to a null model. I am wondering if I can use
>coefficient of variance (CV) and number of replicates in rma.mv function
>of metafor package to built a random model controlling phylogenetic
>signal. Do you agree with my approach or suggest to use another measure
>of variation in replicates of effect size or a different estimate of
>weight?
>
>Best wishes,
>
>Rafael R. Moura.
>scientia amabilis
>
>Doutorando da Pós-graduação em Ecologia e Conservação de Recursos
>Naturais
>Universidade Federal de Uberlândia, Uberlândia, MG, Brasil
>
>ORCID: http://orcid.org/0000-0002-7911-4734
>Currículo
>Lattes: http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K42449
>08A8
>Research Gate: https://www.researchgate.net/profile/Rafael_Rios_Moura2