What's New in December, 2009?

R

• FAQ: How can I estimate the standard error of a transformed parameter in R using the delta method?
• Code Fragment: Examples of using singular value decomposition in R

SAS

• FAQ: How can I get "adjusted" predicted values from a logistic model in SAS?
• FAQ: Where can I find more functions to create new variables?

Stata

• FAQ: How can I use the margins command to understand multiple interactions? (Stata 11)
• FAQ: How can I use multiply imputed data where original data is not included?
• FAQ: How can I use the margins command to understand multiple interactions in logistic regression? (Stata 11)
• FAQ: How can I get anova type results from xtmixed using the margins command? (Stata 11)