On Fri, Jun 8, 2012 at 7:16 AM, Jannis <bt_jan...@yahoo.de> wrote: > The following appears to be pretty "standard" (though not included in chron) > to me: > > b = ISOdate(2001,12,12) > format(b, '%j') >
Using POSIXct here is error prone because it needlessly introduces time zones into a problem where they are not relevant. Subsequent computations might inadvertently use GMT when local time zone was desired or visa versa resulting in errors. See R News 4/1 for info on choosing date and time classes. -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.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.
