[amelia] Amelia 1.6.1 update

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