time extraction and normalization
Use something like format(as.POSIXct(xxx, format = "STRING"), format = "STRING2") where the appropriate formatting codes can be worked out using the info in ?strptime Cheers, Michael
On Mon, Oct 15, 2012 at 9:32 PM, york8866 <yu_york at hotmail.com> wrote:
Dear all, I have a series of time variables such as: 04MAY2011:08:19:00 01JUN2011:09:44:00 28JUN2011:08:08:00 25JUL2011:07:44:00 How could I extract the time as a number, so that I can normalize the times by the first time variable? Thanks, -- View this message in context: http://r.789695.n4.nabble.com/time-extraction-and-normalization-tp4646275.html Sent from the R help mailing list archive at Nabble.com.
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