Dear All, A new package called 'declared' has made it to CRAN (platform specific binaries in due course). This might be useful for social scientists, where multiple (types of) missing values are declared for any given variable. The package has a similar functionality to packages 'haven' and 'labelled', with one but important difference: instead of treating existing values as NAs, package declared interprets NAs as existing values (details in the embedded vignette). Users do not have to do anything else in the subsequent analyses, since the declared values are stored as regular NAs. My most sincere thanks to all contributors from the r-devel list who expressed their points regarding the treatment of missing values in R, and especially to Duncan Murdoch who provided the starting solution. Special thanks to Avi Gross for the subsequent email exchanges, revision of the package and its vignette. Hope this will prove useful, I would be grateful for feedback and bug reports. -- Adrian Dusa University of Bucharest Romanian Social Data Archive Soseaua Panduri nr. 90-92 050663 Bucharest sector 5 Romania https://adriandusa.eu [[alternative HTML version deleted]] _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages