In what format are you dates? Are they always like this: two digits for day, then one or two digits for month, and four digits for the year? Also - are any of your people born after 1999?
Dimitri 2010/4/21 Vlatka Matković Puljić <vlatk...@gmail.com>: > Hi, > > I have v1 (date of test) and v2 (year of birth). > v1 v2 > 15.5.2008 88 > 18.6.2009 54 > > I want R to use only year in v1; and v2 see as 1988 and calculate age in v3. > any ideas how to do that? > > -- > ************************** > Vlatka Matković Puljić > 095/8618 171 > > [[alternative HTML version deleted]] > > > ______________________________________________ > 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. > > -- Dimitri Liakhovitski Ninah.com dimitri.liakhovit...@ninah.com ______________________________________________ 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.