What is the frame of reference to determine the age? Check out 'difftime'.
On Sun, Nov 8, 2009 at 1:50 PM, frenchcr <frenc...@btinternet.com> wrote: > > Ive got a big column of dates (also some fields dont have a date so they have > NA instead), > that i have converted into date format as so... > > > dates<-as.character(data[,"date_commissioned"]); # converted dates to > characters > dates[1:10] > [1] "19910101" "19860101" "19910101" "19860101" "19910101" "19910101" > "19910101" "19910101" "19910101" "19910101" > > dateObs <- as.Date(dates,format="%Y%m%d") > dateObs[1:10] > [1] "1991-01-01" "1986-01-01" "1991-01-01" "1986-01-01" "1991-01-01" > "1991-01-01" "1991-01-01" "1991-01-01" "1991-01-01" "1991-01-01" > > > > Now i need to turn the dates into AGE, how do i do it? Im not worried about > fractions of years, whole years would do. > > > -- > View this message in context: > http://old.nabble.com/Turn-dates-into-age-tp26256656p26256656.html > Sent from the R help mailing list archive at Nabble.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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.