[R-meta] Forest plot with groups

[Viechtbauer, Wolfgang (SP)]

Dear Sally,

> Here is an example of what we would like to do, but it is 
> for the metafor package, which we cannot use because we 
> have observations nested within studies.

Why do you think metafor is not suitable to handle this? Here are a bunch of illustrative analyses showing how to handle nested estimates:

http://www.metafor-project.org/doku.php/analyses#multivariate_multilevel_meta-analysis_models

Best,
Wolfgang

-----Original Message-----
From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces using r-project.org] On Behalf Of Sally Olderbak
Sent: Tuesday, 30 April, 2019 16:05
To: r-sig-meta-analysis using r-project.org
Subject: [R-meta] Forest plot with groups

Hi Everyone,

We are trying to create a forest plot figure that graphs study-level 
estimates according to different variable categories. For example, I 
want to model effects for psychopathy and I want to group estimates by 
different factors within psychopathy. So the figure would include 
study-level estimates for Psychopathy Factor 1 followed by study-level 
estimates for Psychopathy Factor 2. Below each group, we would present 
the average effect size within that group, followed by a third estimate 
averaging across both groups. Here is an example of what we would like 
to do, but it is for the metafor package, which we cannot use because we 
have observations nested within studies.

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

Is this possible to do in Robumeta and if so, does anyone have any 
syntax they can share with us on how to do this?

Thank you in advance for your help!

best regards, Sally

-- 
Sally Olderbak, PhD
Margarete von Wrangell Fellow
Universität Ulm
Fakultät Ingenieurwissenschaften, Informatik und Psychologie
Institut für Psychologie und Pädagogik
Abt. Differentielle Psychologie und Psychologische Diagnostik
D-89069 Ulm

Tel: +49-(0)731/50 31142
Fax: +49-(0)731/50 31149
Email: sally.olderbak using uni-ulm.de