To install the R package polrep, use the following command within R:
install.packages("polrep", repos="http://R-Forge.R-project.org")
The package agrmt is now required. Install it via CRAN or R-Forge:
install.packages("agrmt", repos="http://R-Forge.R-project.org")
It is needed for some of the functions, and gives you the helper functions collapse and expand.
Last update 4 January 2024