Hi all, 

Hot on the heels of the release of R 2.15, we are happy to announce the release of Amelia 1.6.1. This update incorporates a few new features and a few bugfixes, including one that prevented AmeliaView from opening. You can now use the R generic "transform" function to create new variables in each of the imputed datasets. To learn more, see section 4.8 of our manual:

http://cran.r-project.org/web/packages/Amelia/vignettes/amelia.pdf

To install this update, run the following lines of code at the R prompt:

install.packages("Amelia", repos = "http://cran.r-project.org")

And here is a list of the changes since the last update to CRAN:

== 1.6.1 (30 Mar 2012) ==
   * Fixed a bug that prevented AmeliaView from opening. 

== 1.6 (22 Feb 2012) ==
   * Added a transform function to create transformed variables 
   in the imputed datasets.
   * Added a mi.meld() function that can combine quantities of 
   interest using the Rubin rules.
   * Added a subset arugment to overimpute. 
   * write.amelia() can now create a stacked/long imputed 
   datatset (also updated to AmeliaView)
   * Fixed a bug in moPrep (Thanks to Jeff Arnold for the patch)
   * missmap() has an arugment to not re-order the variables.

If you have any problems or questions, please feel free to send an email to list. 

Cheers,
matt.

~~~~~~~~~~~
Matthew Blackwell
PhD Candidate
Institute for Quantitative Social Science
Department of Government
Harvard University
url: http://www.mattblackwell.org