Hi R users: This is a very strange problem:
Why this instruction shows me NA?, and any other date shows me that error! as.POSIXct(strptime("1992-5-3",format="%Y-%m-%d")) This is my R version on windows 7. "R version 2.13.1 Patched (2011-08-25 r56794)" Thank you for your help. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.