What's New in March, 2010?

R

• FAQ: How can I get Type III tests of fixed effects in R?

SPSS

• FAQ: What kinds of new variables can I make with the create command?
  
• Code Fragment: Numbering groups consecutively

Stata

• FAQ: How can I do mediation analysis with a categorical IV in Stata?
  
• FAQ: More of how can I use the margins command to understand multiple interactions in regression? (Stata 11)