How do I print predicted effect sizes in forest plot?
At 21:05 05/12/2013, Alma Wilflinger wrote:
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")
Alma You do not need to specify both vi and sei as one is sufficient and you do not need ni as well. I realise that is not the question you asked (which Wolfgang has already answered).
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
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