date handling
d = as.POSIXlt(c("2005-07-01", "2005-07-02", "2005-07-03", "2005-07-04",
"2005-07-05"))
d$mon and d$year will get you part way there.
That is assuming your dates are formated yyyy-mm-dd. strptime() might
also be useful.
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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