Hi Uwe, You are correct - that was a type O (52) and thanks for you your suggestion that works..
Pele wrote: > > > > Hi R users, > > I have a factor variable called date as shown below: Can anyone share the > best / most efficient way to extract year and week (e.g. year = 2006, > week = 52 for first record, etc..)? My data set has 1 million records. > > DATE > 11DEC2006 > 11SEP2006 > 01APR2007 > 02DEC2007 > > > Thanks in advance for any help! > -- View this message in context: http://www.nabble.com/Date-conversion-tp22355788p22356526.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.