groundhog: Version-Control for CRAN, GitHub, and GitLab Packages

Make R scripts reproducible, by ensuring that every time a given script is run, the same version of the used packages are loaded (instead of whichever version the user running the script happens to have installed). This is achieved by using the command groundhog.library() instead of the base command library(), and including a date in the call. The date is used to call on the same version of the package every time (the most recent version available at that date). Load packages from CRAN, GitHub, or Gitlab.

Version: 3.2.0
Depends: utils
Imports: methods
Suggests: git2r, remotes
Published: 2024-02-03
DOI: 10.32614/CRAN.package.groundhog
Author: Uri Simonsohn ORCID iD [aut, cre], Hugo Gruson ORCID iD [ctb, aut]
Maintainer: Uri Simonsohn <urisohn at>
License: GPL-3
NeedsCompilation: no
Materials: README
In views: ReproducibleResearch
CRAN checks: groundhog results


Reference manual: groundhog.pdf


Package source: groundhog_3.2.0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): groundhog_3.2.0.tgz, r-oldrel (arm64): groundhog_3.2.0.tgz, r-release (x86_64): groundhog_3.2.0.tgz, r-oldrel (x86_64): groundhog_3.2.0.tgz
Old sources: groundhog archive


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