Metafor and forest(); not showing 'ilab' and text

I cannot reproduce the issue with 'ilab' not being shown when using 'subset'. My guess is that the values for 'ilab.xpos' specified are actually outside of the plotting region. After you have drawn the forest plot, try:

par("usr")[1:2]

to see what the default limits actually are. Then use 'xlim' to adjust the limits to your taste. And then use appropriate values for 'ilab.xpos', so they are inside those limits.

Moreover, the graph is showed correctly only within the zoom in
Rstudio but if I save it it is showed as enclosed.

Nothing was enclosed (or it was stripped).

Moreover, how would you suggest to handle (graphically) the
multiple-cases-per-study thing? It's a 'good' way to average the cases
among different studies in the graphs?

Maybe add some space between groupings (i.e., studies). The example given here can provide some clues how one could go about this: http://www.metafor-project.org/doku.php/plots:forest_plot_with_subgroups But drawing a plot like this requires a lot of hand-tweaking.

Best,
Wolfgang

--
Wolfgang Viechtbauer, Ph.D., Statistician | Department of Psychiatry and
Neuropsychology | Maastricht University | P.O. Box 616 (VIJV1) | 6200 MD
Maastricht, The Netherlands | +31 (43) 388-4170 | http://www.wvbauer.com

-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Marco
Colagrossi
Sent: Monday, August 24, 2015 16:04
To: r-help at r-project.org
Subject: [R] Metafor and forest(); not showing 'ilab' and text

Hello folks,

I have a couple of issues with the metafor package, specifically with
the forest graphs.
I am currently conducting a Meta-Analysis in economics throughout the
metafor package.

My meta-analysis has the specific of having different cases from
single studies, and this proven to be challenging especially when
trying to plot graphically the results I'm obtaining.

Here's the code:

forest(pc, var, ci95m, ci95p, slab = authoryear, psize=1,
subset=(pub==1),
       ilab = cbind(ys, f_dim, SIMdv, SIMiv),
       ilab.xpos = c(-9.5, -8, -6, -4.5), cex = 0.75)
par(font=2)
      text(c(-9.5,-8,-6,-4.5), 26, c("Years", "Firm(s) Dimension", "DV",
"IV"))
      text(-16,                26, "Author(s) and Year",     pos=4)
      text(6,                  26, "Observed Outcome [95% CI]", pos=2)
par(op)

'pc' is the 'effect size', 'var' the variance, 'ci95m & ci95p' the CI,
'pub' if the paper has been published or not. the pub subset was the
first idea I had in order to split my sample that otherwise would have
been to big. The issue with this solution is that forest() displays
only the slap argument and the forest with the confidence interval,
completely ignoring the lab argument and the text I'm trying to add.
Moreover, the graph is showed correctly only within the zoom in
Rstudio but if I save it it is showed as enclosed.

What I'm doing wrong? I tried both to look at the package
documentation and online but I can't figure it out.

Moreover, how would you suggest to handle (graphically) the
multiple-cases-per-study thing? It's a 'good' way to average the cases
among different studies in the graphs?
In my meta-analysis I'm using a multilevel model as shown in
Gelman-Hill but graphically (and in tables) I'm struggling.

Thanks for your help and patience