[R] date format

[Dimitris Rizopoulos]

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" <alxmilton at yahoo.it>
To: <r-help at 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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