[R] Seek general information about time/date storage and functions in R

From: Ben Fairbank <BEN_at_ssanet.com>
Date: Thu 04 Jan 2007 - 17:42:56 GMT


Hello R List -  

I have to import Excel files (either as .csv files or using RODBC) into R (2.4.1, Windows) and operate on dates and times (e.g. find minutes between times, change dates to days of week or analyze by weeks of year). The help files for format.Date, strptime, as.POSIX, DateTimeClasses, etc. etc. are informative but perhaps a little terse. I have googled unsuccessfully for a more general description of how R represents times and dates, and the methods (e.g. date arithmetic) for working with them. Can a reader point out such an introduction, preferably on-line?  

Thank you,  

Ben Fairbank    

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