To install the R package polrep, use the following command within R:
install.packages("https://codeberg.org/druedin/polrep/releases/download/0.32.16/polrep_0.32.16.tar.gz", repos = NULL, type = "source")
The package agrmt is now required. Install it via CRAN:
install.packages("agrmt")
It is needed for some of the functions, and gives you the helper functions collapse and expand.
Last update 17 October 2026