Highto convert strings into date use the:"? strptime" command, it converts data
into POSIXlt classthis class provides direct access to some details of your
date time information, likea<-strptime("07/07/1992",format="%d/%m/%Y")"a$mon+1"
gives you the month (+1 because POSIXlt uses 0-11 for months counts)"a$year"
gives you the yearMarcel Sandow----- Ursprüngliche Nachricht -----Von: Mary
Royerr Datum: Dienstag, Oktober 9, 2007 3:39 pmBetreff: [R] extract year or
month from dateAn: r-help@r-project.org> Hi,> > I am having trouble extracting
just the year or the month or the > day from a> date such as 5/7/2007 which is
May 7th 2007. Is there any particular> function to extract just the year from
this format?> > When I am reading this data from a text file it is reading it >
correctly in> the same format but does not acknowlede it as date but as a >
factor. If I try> as.date(5/7/2007) then it is converting it to 1Jan1960. Weird
it > is. Any> help on that front?> > Any help is greatly appreciated.> >
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______________________________________________> R-help@r-project.org mailing
list> https://stat.ethz.ch/mailman/listinfo/r-help> PLEASE do read the posting
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______________________________________________________________________________
Marcel Sandow
Leibniz Institute of Marine Sciences - IFM-Geomar
Experimental Ecology: Foodwebs
Düsternbrooker Weg 20
24105 Kiel
Germany
Fon: +49-431-600-4404
Fax: +49-431-600-1515
Homepage: http://www.ifm-geomar.de
E-mail: [EMAIL PROTECTED]
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