This R package provides Person Parameter estimation for the 1,2,3,4PL model and the generalized partial credit model. This package will soon be uploaded to cran, and will replace the old PP package which does similar computation, but with far less speed. This new version of the PP package makes use of the great Rcpp package to accelerate computations.
To install this package from github, install devtools first.
library(devtools)
install_github("PP", "manuelreif", ref="master")TO-DOs for the next release version:
- remove typos
- clarify this and that
- fit indices: these will be built in by Jan Steinfeld
- Person Parameter estimation for other models