Dear all, I've been struggling to perform common operations on dates that I need to be able to correct draw date-time scales - in particular I need to be able to round/truncate/ceiling dates to arbitrary precision - e.g. to weeks, months or years (or multiples thereof). I haven't been able to find anything to do this in base R (trunc.Date only truncates to sub-day units), or in the date related contributed packages I've looked in (e.g. chron). Have I missed something?
Otherwise, I have been working on a bottom up set of functions to make date manipulation easier - http://gist.github.com/10238. These should work for all date-time types and I've tried to use a consistent naming scheme and consistent output conventions. This seems like a rather small bundle of functions to be worth turning into a package, so I was wondering if anyone would be interested in adopting them into an existing date-time related package. Regards, Hadley -- http://had.co.nz/ ______________________________________________ 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.
