[R-meta] Displaying Subgroups in Forest Plot

[Viechtbauer, Wolfgang (SP)]

Dear Dylan,

There is a pretty coprehensive example here:

http://www.metafor-project.org/doku.php/plots:forest_plot_with_subgroups

This should be fairly easy to adapt to the case where rma.mv() is used for model fitting.

Best,
Wolfgang

>-----Original Message-----
>From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces using r-project.org]
>On Behalf Of Dylan Johnson
>Sent: Friday, 15 January, 2021 20:41
>To: r-sig-meta-analysis using r-project.org
>Subject: [R-meta] Displaying Subgroups in Forest Plot
>
>Hello,
>
>I am using the ‘forest’ function to plot the results from a ‘rma.mv’ model.
>I would like to stratify the forest plot into subgroups at the two levels of
>‘VAR_X’. I do not understand how to tell the program what the variable is to
>stratify by. I see a lot of code such as “c(1:4)” and don’t really grasp
>what that is doing.
>
>I have a total of 37 effects, where n=14 are in category 1 of ‘VAR_X’ and
>n=23 are in category 2 of ‘VAR_X’
>
>Ideally I would like to present these with their pooled estimate at the
>bottom of each subgroup level chunk.
>
>Thanks in advance!
>
>
>Dylan Johnson, MSc
>
>MA Student, School and Clinical Child Psychology
>Department of Applied Psychology and Human Development
>
>University of Toronto
>252 Bloor Street West
>
>Toronto, ON M5S 1V6