A special double edition of the Package Update Roundup this month! This is a list of new or updated packages that were released for R in December and January, as announced on the r-packages mailing list. To include other updates on this list, please email David Smith. For a complete list of all updates on CRAN, see the CRANberries archive for December 2009 and January 2010. Follow package name links for ratings and other information on crantastic.org.
exact2x2, a package for exact conditional tests and confidence Intervals for 2x2 tables, was updated to allow optionally give an exact McNemar's test together with odds ratio estimates and confidence intervals.
micEcon, micEconAids, and miscTools, three packages for microeconomic analysis and microeconomic modelling have been released (these packages were previously combined into a single micEcon package)