Bayesian Latent Class Analysis (BayesLCA)
Bayesian Latent Class Analysis using several different methods.

Mixture Rasch Models with JMLE (mixRasch)
Estimates Rasch models and mixture Rasch models, including the dichotomous Rasch model, the rating scale model, and the partial credit model.

Spatial Visualization with Google Maps and OpenStreetMap (ggmap)
Easily visualize of spatial data and models on top of Google Maps, OpenStreetMaps, Stamen Maps, or CloudMade Maps with ggplot2.