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groundhog  

Version-Control for CRAN, GitHub, and GitLab Packages
View on CRAN: Click here


Download and install groundhog package within the R console
Install from CRAN:
install.packages("groundhog")

Install from Github:
library("remotes")
install_github("cran/groundhog")

Install by package version:
library("remotes")
install_version("groundhog", "3.4.0")



Attach the package and use:
library("groundhog")
Maintained by
Uri Simonsohn
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2020-10-30
Latest Update: 2025-05-12
Description:
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.
How to cite:
Uri Simonsohn (2020). groundhog: Version-Control for CRAN, GitHub, and GitLab Packages. R package version 3.4.0, https://cran.r-project.org/web/packages/groundhog. Accessed 26 Aug. 2026.
Previous versions and publish date:
(2026-07-09 07:45), 1.0.0 (2020-10-30 10:20), 1.1.0 (2021-01-04 14:00), 1.2.0 (2021-01-14 21:50), 1.3.2 (2021-03-12 13:20), 1.4.0 (2021-05-03 11:40), 1.5.0 (2021-09-07 17:50), 2.0.0 (2022-07-12 17:00), 2.0.1 (2022-08-06 09:20), 2.1.0 (2022-10-02 23:30), 2.2.0 (2023-01-25 15:30), 2.2.1 (2023-03-04 08:20), 3.0.0 (2023-04-20 16:10), 3.1.0 (2023-05-05 19:30), 3.1.1 (2023-08-21 13:20), 3.1.2 (2023-10-13 07:00), 3.2.0 (2024-02-03 23:10), 3.2.1 (2024-09-29 06:40), 3.2.2 (2025-01-19 13:00), 3.2.3 (2025-05-12 08:00), 3.3.0 (2025-12-09 13:20)
Other packages that cited groundhog R package
View groundhog citation profile
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Complete documentation for groundhog
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