[R] metafor package: changing decimal in forest plot to midline decimal

[Viechtbauer Wolfgang (STAT)]

I tried this:

library(metafor)
data(dat.bcg)
res <- rma(measure="RR", ai=tpos, bi=tneg, ci=cpos, di=cneg, data=dat.bcg, slab=paste(author, year, sep=", "))
options(OutDec="\xB7")
forest(res)

No warning, no scrambling, and all decimals shown in midline (also on the x-axis). But this is on Windows.

My guess it's a font issue. There may be others that can give more useful advice.

Best,
Wolfgang

> -----Original Message-----
> From: Dietlinde Schmidt [mailto:schmidt.dietlinde at web.de]
> Sent: Monday, July 07, 2014 10:09
> To: Viechtbauer Wolfgang (STAT); r-help at r-project.org
> Subject: Re: [R] metafor package: changing decimal in forest plot to
> midline decimal
> 
> Thanks for that link, Wolfgang. Unfortunately, there comes the Warning
> with it:
> "(process:3634): Pango-WARNING **: Invalid UTF-8 string passed to
> pango_layout_set_text()"
> and decimal being "scrambled" in forest plot and not displaying the
> midline decimal.
> 
> I think it has to do with the fact, that only 1-byte-codes are allowed
> for options(OutDec="\xB7").
> Or does it have to do with me using Ubuntu?
> 
> Apart from that the options-command does not seem to change the decimal
> of values on the "true" x-axis under the plot.
> 
> Still searching for a solution.
> 
> Cheers,
> Linde
> 
> Am 05.07.2014 19:06, schrieb Viechtbauer Wolfgang (STAT):
> > I found this:
> >
> > https://stat.ethz.ch/pipermail/r-help/2012-August/321057.html
> >
> > So, use this before drawing the forest plot:
> >
> > options(OutDec="\xB7")
> >
> > Best,
> > Wolfgang
> >
> > --
> > Wolfgang Viechtbauer, Ph.D., Statistician
> > Department of Psychiatry and Psychology
> > School for Mental Health and Neuroscience
> > Faculty of Health, Medicine, and Life Sciences
> > Maastricht University, P.O. Box 616 (VIJV1)
> > 6200 MD Maastricht, The Netherlands
> > +31 (43) 388-4170 | http://www.wvbauer.com
> > ________________________________________
> > From: r-help-bounces at r-project.org [r-help-bounces at r-project.org] On
> Behalf Of Dietlinde Schmidt [schmidt.dietlinde at web.de]
> > Sent: Thursday, July 03, 2014 3:07 PM
> > To: r-help at r-project.org
> > Subject: [R] metafor package: changing decimal in forest plot to
> midline        decimal
> >
> > Dear R-Community,
> >
> > I need to change the punctuation of the reported weights, effect sizes
> > and confidence intervals in a forest plot created with the
> > forest()-function in the metafor-package.
> >
> > Midline decimal means that it looks like this (23*6) rather than that
> > (23.6).
> >
> > Do I need to change the forest()-function and if yes which part
> exactly?
> > Or is there an otherway how I can do it maybe by changing the
> > rma()-function, of which the forest()-function is then applied to?
> >
> > Thanks for any hints and tipps!
> >
> > Cheers, Linde
> >
> > ______________________________________________
> > R-help at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-
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