Groundhog in a nutshell.
Make your R scripts reproducible by replacing library(pkg) with groundhog.library(pkg,date)
groundhog.library()loads packages & their dependencies as available on chosen date on CRAN.
- Packages get automatically installed if needed.
- Installation keeps, rather than replaces, existing other versions of that package.
- All operating systems and R versions install/load the same package version
- If you want to discontinue using
groundhog, simply:groundhog.library(pkg,date)
Example:
install.packages("groundhog")
library("groundhog")
pkgs <- c("rio","metafor")
groundhog.library(pkgs, "2023-09-01")