Dear Vera
In addition to what you already have you might like to know about the
mailing list specifically dedicated to meta-analysis in R.
https://stat.ethz.ch/mailman/listinfo/r-sig-meta-analysis//
You might like to search the archives first as this sort of issue does
come up there. You are also likely to get more immediate help if you
frame your question in terms of either meta or metafor the two packages
which dmetar uses. The authors of meta and metafor all frequent the list
Michael
On 14/09/2020 20:41, Marc Schwartz via R-help wrote:
Hi,
Bert has pointed you to some R specific packages for meta-analyses via the Task
View.
It sounds like you may need to first address some underlying conceptual issues,
which strictly speaking, is off-topic for this list.
That being said, a quick Google search came up with some possible resources,
beyond the Cochrane reference:
https://academic.oup.com/ije/article/31/1/140/655940
https://onlinelibrary.wiley.com/doi/abs/10.1002/jrsm.1236
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0133023
Perhaps with additional conceptual background, that might assist in enabling
you to make use of the R packages that provide relevant functionality.
Another option, if you want to stay with the dmetar package, would be to
contact the package maintainer for some guidance relative to how to use the
functionality in the package given your specific use case.
Regards,
Marc Schwartz
On Sep 14, 2020, at 3:14 PM, Bert Gunter <bgunter.4...@gmail.com> wrote:
Did you first try a web search? -- you should always do this before posting
here.
"meta-analysis in R" brought up this:
https://CRAN.R-project.org/view=MetaAnalysis
Have you looked at this task view yet?
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Mon, Sep 14, 2020 at 11:50 AM Belgers, V. (Vera) <
v.belg...@amsterdamumc.nl> wrote:
Dear sir/madam,
Thank you in advance for taking the time to read my question. I am
currently trying to conduct a meta-analysis combining parallel and
crossover trials. According to the Cochrane Handbook, I can include
crossover trials by using t-paired statistics. So far, I have managed to
conduct a meta-analysis and forest plot of the parallel trials using the
dmetar package, but I did not succeed in including the crossover trials. I
do have the raw data of most of these crossover trials.
Does anybody know how to add crossover trials to the meta-analysis?
With kind regards,
Vera Belgers
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