[R-meta] Problem with forest plot in 'meta' by group

[Guido Schwarzer]

Dear Antonello,

You hit a bug in an internal function of *meta*: subgroup sample sizes 
were set to NA for objects generated with metagen().

I fixed this bug in the GitHub version of *meta* (see 
https://github.com/guido-s/meta).

You can install this version using the following commands:
install.packages("devtools")
devtools::install_github("guido-s/meta")

Furthermore, I slightly modified your R code (see attachment). 
Specifically, you can use arguments 'n.e' and 'n.c' in metagen() to 
provide sample sizes.

Best wishes, Guido

-- 
Dr. Guido Schwarzer
Institute of Medical Biometry and Statistics,
Faculty of Medicine and Medical Center - University of Freiburg

Postal address: Stefan-Meier-Str. 26, D-79104 Freiburg

Phone: +49/761/203-6668
Mail: sc using imbi.uni-freiburg.de
Homepage: http://www.imbi.uni-freiburg.de


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