This is not reproducible, and you have not told us the seed you used which is what is needed to make random results reproducible.
Please supply a reproducible example (if you can). I ran the first line 100 times (about 15 minutes) without encountering any NAs. If you found these fairly easily it indicates a bug in your Windows installation, not one in R. Further, if it were at all common then other people would have encountered it and surely mentioned it. On Thu, 23 Feb 2006, [EMAIL PROTECTED] wrote: > Full_Name: Josh McNutt > Version: 2.2.1 > OS: Win XP > Submission from: (NULL) (192.88.209.232) > > >> which(is.na(rnorm(20000000))) > [1] 15242377 > >> which(is.na(rnorm(10000000))) > [1] 3692029 > >> which(is.na(rnorm(40000000))) > [1] 5560337 5938719 33888822 > >> which(is.na(rnorm(50000000))) > [1] 25231754 42397181 45085564 45363557 > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel