R
loo 
Leave-one-out cross-validation using R (and stan).
(author)
mallet
Interface to the Mallet Java library for machine learning and topic modeling.
(maintainer)
sweidnumbr
Handling Swedish identity numbers in R
(maintainer, author, creator)
pxweb
Connections to PXWEB type API:s for official statistics.
(maintainer, author, creator)
markmyassignment
Automatic marking of student assignments using unit test suites.
(maintainer, author, creator)