Meta-Analysis of Generalized Additive Models R package metagam version 0.4.1 CRAN Task View: MetaAnalysis (https://CRAN.R-project.org/view=MetaAnalysis) Meta-analysis of generalized additive models and generalized additive mixed models. A typical use case is when data cannot be shared across locations, and an overall meta-analytic fit is sought. 'metagam' provides functionality for removing individual participant data from models computed using the 'mgcv' and 'gamm4' packages such that the model objects can be shared without exposing individual data. Furthermore, methods for meta-analysing these fits are provided. The implemented methods are described in Sorensen et al. (2020), <doi:10.1016/j.neuroimage.2020.117416>, extending previous works by Schwartz and Zanobetti (2000) and Crippa et al. (2018) <doi:10.6000/1929-6029.2018.07.02.1>. Software Imports: mgcv, ggplot2, metafor, rlang Suggests: roxygen2, knitr, rmarkdown, devtools, covr, testthat (>= 2.1.0) Oystein Sorensen <oystein.sorensen@psykologi.uio.no> Comprehensive R Archive Network (CRAN) Oystein Sorensen [aut, cre] (ORCID: <https://orcid.org/0000-0003-0724-3542>), Andreas M. Brandmaier [aut] (ORCID: <https://orcid.org/0000-0001-8765-6982>), Athanasia Mo Mowinckel [aut] (ORCID: <https://orcid.org/0000-0002-5756-0223>) GPL-3 2025-07-01 application/tgz https://CRAN.R-project.org/package=metagam doi:10.32614/CRAN.package.metagam