The metafor Package

A Meta-Analysis Package for R

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news:news [2022/01/02 13:51] Wolfgang Viechtbauernews:news [2022/03/20 22:37] Wolfgang Viechtbauer
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 +==== 2022-03-20: Forest Plot with Exact Confidence Intervals ====
 +
 +A question was recently raised on the [[https://stat.ethz.ch/mailman/listinfo/r-sig-meta-analysis|R-sig-meta-analysis]] mailing list that asked about the difference between the confidence intervals shown in forest plots and those computed based on 'exact' methods (see [[https://stat.ethz.ch/pipermail/r-sig-meta-analysis/2022-March/003947.html|here]] for the question and [[https://stat.ethz.ch/pipermail/r-sig-meta-analysis/2022-March/003950.html|here]] for my response). Using a slightly more common example of a meta-analysis based on $2 \times 2$ table data, I have written up a little illustration to show how one can create a [[tips:forest_plot_with_exact_cis|forest plot with exact confidence intervals]].
 +
 +==== 2022-03-12: Over 10,000 Citations ====
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 +Since I don't obsessively check my Google Scholar profile like everybody else does, it is by mere coincidence that I noticed that my [[https://doi.org/10.18637/jss.v036.i03|JSS paper about the metafor package]] has now been [[https://scholar.google.com/scholar?oi=bibs&hl=en&cites=8753688964455559681|cited more than 10,000 times]] (of course, like everybody else, I will ignore the Web of Science count, which isn't quite there yet ...). I greatly appreciate that people are citing the paper and hence supporting the creation and maintenance of this R package in this way. It can still be difficult to receive proper credit for software development in academia, so citing the software is one of the best ways that you can support developers in their work (aside from donating a million bucks you happen to have lying around). I think it also helps if there is a paper or book about the software, which is sometimes a bit easier to cite than the software itself (what was again the APA style for citing software?) and citation counts are more easily tracked for papers/books than citations of the software itself.
 +
 +==== 2022-03-06: Specifying Inputs to the rma() Function ====
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 +Unfortunately, I have seen a number of cases where users of the metafor package have misspecified the inputs to the ''rma()'' function, giving the standard errors of the effect sizes as an unnamed second argument. This will lead to incorrect results. To explain the problem in more detail (and so that I can simply point people to a place where this issue is explained thoroughly), I have written up [[tips:input_to_rma_function|this discussion]].
  
 ==== 2022-01-02: More Forest Plot Examples ==== ==== 2022-01-02: More Forest Plot Examples ====
news/news.txt · Last modified: 2024/03/29 10:44 by Wolfgang Viechtbauer