StatPlanet Map Maker is a program for creating interactive thematic maps and graphs. Data is read from an external file (.CSV) which can be easily edited. Customization options include specifying the zoom level, creation of selectable regions, changing the map colors, and adding country mouse-over text.
The Item Response Theory (IRT) library is a set of functions to estimate the items and abilities from the responses of subjects to a questionnaire. The IRT models supported are the logistic model, the nominal response model, the graded response model, and smoothing by penalization and kernel. The project also hosts rirt, a package for the R Project for Statistical Computing, and eirt, an add-in for Excel.