How do I print predicted effect sizes in forest plot?

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Alma Wilflinger
Sent: Thursday, December 05, 2013 22:06
To: R help <r-help at r-project.org>
Subject: [R] How do I print predicted effect sizes in forest plot?

Hi,

I am struggling a bit with creating a forest plot containing the predicted
effect size. As seen in other studies these effect sizes are shown per
study usually as a light grey diamond - which is what I want to achieve.

The calls I use are:
iat_result = rma(yi=Mean, vi=Variance_rounded, ni=N, sei=Std_error,
slab=Study_Name, subset=(Country == "AUT"), data=cma_iat, method="HS")

summary.rma(iat_result)


#not sure how to use it or if needed
#predict(iat_result)

forest(iat_result)


At the end I am getting the forest plot as is without the predicted
values.

I am not sure if I need the predict function and how to use it? - the
predict function deliveres the same values as already computed in the rma
object.


I checked the manual for package metafor but was not able to find out how
to print the predicted values per study.


kind regards, Alma
	[[alternative HTML version deleted]]