Xianying Tan

lubridate

Functions to work with date-times and time-spans: fast and user
friendly parsing of date-time data, ...

Convert R Markdown documents into a variety of formats.

A 'Doxygen'-like in-source documentation system
for Rd, collation, and 'NAMESPACE' files.

Makes it incredibly easy to build interactive web
applications with R. Automatic "reactive" binding ...