D = as.POSIXlt(c("2005-07-01", "2005-07-02", "2005-07-03", "2005-07-04", "2005-07-05"))
> (Years = 1900+D$year) [1] 2005 2005 2005 2005 2005 > (Months = D$mon+1) [1] 7 7 7 7 7 > weekdays(D) [1] "Friday" "Saturday" "Sunday" "Monday" "Tuesday" # you better check this one carefully !!! (Weeknumbers = floor((D$yday+7)/7)) JeeBee On Mon, 12 Dec 2005 12:59:11 +0100, Richard van Wingerden wrote: > Hi, > > Given a frame with calendar date's: > > "2005-07-01", "2005-07-02","2005-07-03","2005-07-04","2005-07-05",etc. > > I want to extract the following from these dates: > > week number > month number > year number > > Any ideas how to accomplish this? > > Many thanks. > > Regards, > Richard > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html