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metaforest: Exploring Heterogeneity in Meta-Analysis using Random Forests

Conduct random forests-based meta-analysis, obtain partial dependence plots for metaforest and classic meta-analyses, and cross-validate and tune metaforest- and classic meta-analyses in conjunction with the caret package. A requirement of classic meta-analysis is that the studies being aggregated are conceptually similar, and ideally, close replications. However, in many fields, there is substantial heterogeneity between studies on the same topic. Classic meta-analysis lacks the power to assess more than a handful of univariate moderators. MetaForest, by contrast, has substantial power to explore heterogeneity in meta-analysis. It can identify important moderators from a larger set of potential candidates (Van Lissa, 2020). This is an appealing quality, because many meta-analyses have small sample sizes. Moreover, MetaForest yields a measure of variable importance which can be used to identify important moderators, and offers partial prediction plots to explore the shape of the marginal relationship between moderators and effect size.

Version: 0.1.4
Depends: R (≥ 3.5.0), ggplot2, metafor, ranger, data.table, methods
Imports: gtable, grid
Suggests: testthat, caret, knitr, rmarkdown, covr
Published: 2024-01-26
DOI: 10.32614/CRAN.package.metaforest
Author: Caspar J. van Lissa
Maintainer: Caspar J. van Lissa <c.j.vanlissa at gmail.com>
License: GPL-3
NeedsCompilation: no
Citation: metaforest citation info
Materials: README NEWS
In views: MetaAnalysis
CRAN checks: metaforest results

Documentation:

Reference manual: metaforest.pdf
Vignettes: Introduction to metaforest

Downloads:

Package source: metaforest_0.1.4.tar.gz
Windows binaries: r-devel: metaforest_0.1.4.zip, r-release: metaforest_0.1.4.zip, r-oldrel: metaforest_0.1.4.zip
macOS binaries: r-release (arm64): metaforest_0.1.4.tgz, r-oldrel (arm64): metaforest_0.1.4.tgz, r-release (x86_64): metaforest_0.1.4.tgz, r-oldrel (x86_64): metaforest_0.1.4.tgz
Old sources: metaforest archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.