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

Guido Schwarzer @c @end|ng |rom |mb|@un|-|re|burg@de
Tue Mar 26 12:14:04 CET 2019

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 

You can install this version using the following commands:

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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