you could use "as.Date()", i.e.,
ss <- "16/12/03" as.Date(ss, "%d/%m/%y") julian(as.Date(ss, "%d/%m/%y"))
I hope it helps.
Best, Dimitris
---- Dimitris Rizopoulos Ph.D. Student Biostatistical Centre School of Public Health Catholic University of Leuven
Address: Kapucijnenvoer 35, Leuven, Belgium Tel: +32/16/336899 Fax: +32/16/337015 Web: http://www.med.kuleuven.ac.be/biostat/ http://www.student.kuleuven.ac.be/~m0390867/dimitris.htm
----- Original Message ----- From: "alessandro carletti" <[EMAIL PROTECTED]>
To: <r-help@stat.math.ethz.ch>
Sent: Wednesday, April 27, 2005 3:08 PM
Subject: [R] date format
Hi, I'm trying to convert a vector containing dates in character format ("dd/mm/yy"): mdy.date (from date package) seems to be able to do that, but it returns to me a vector containing julian dates... but negative! for example:
16/12/03 is converted into -20470
it is because R recognizes year ../03 as 1903, instead of 2003, but how can I do to solve this problem? (of course, I could add "36525" to each data, but it's not very elegant)
Thanks
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______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
