date handling
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
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