[R-meta] Question on metafor forest plot

Dear Gabriel,

The point sizes can also be set manually via the 'psize' argument. For
example:

dat <- dat.bcg
dat <- escalc(measure="RR", ai=tpos, bi=tneg, ci=cpos, di=cneg,
              data=dat, slab=paste0(author, ", ", year))
res <- rma(yi, vi, data=dat)

forest(res, header=TRUE, top=2)

forest(res, header=TRUE, top=2, cex=1.5, psize=weights(res)/10)

You can play around with the factor in weights(res)/10 until you like the
size. Or just use psize=1 (or some other constant) to not draw points in
different sizes.

The other thing that changes is the height of the lines at the end of the
CI bounds and the size of the summary polygon. These can be controlled via
the 'efac' argument. For example:

forest(res, header=TRUE, top=2, cex=1.5, psize=weights(res)/10, efac=0.7)

Again, play around with efac until you like how it looks. You can also
specify two values for the lines at the end of the CI bounds and the
summary polygon separately. For example:

forest(res, header=TRUE, top=2, cex=1.5, psize=weights(res)/10,
efac=c(0,0.7))

Best,
Wolfgang

-----Original Message-----
From: R-sig-meta-analysis [mailto:

r-sig-meta-analysis-bounces at r-project.org] On

Behalf Of Gabriel Cotlier via R-sig-meta-analysis
Sent: Tuesday, 06 June, 2023 13:29
To: r-sig-meta-analysis at r-project.org
Cc: Gabriel Cotlier
Subject: [R-meta] Question on metafor forest plot

Hello all,

I would like to ask how can I modify the size of the text font in a
metrafor package forest plot  without modifying the size of the size

effect

points and their error bars?

I have tried to use cex but this argument indeed increases the text fonts
size but also increases the size effect points and their error bars as

well.

Thanks a lot for your help.
regards,