Is there a way in R to globally setup a default format for dates for all, or nearly all, or just "many" R date/time-related functions? For example, dates in library(chron) expects, by default, MDY with forward-slash delimiters, whereas my habit and my data sets tend to be YMD with dash delimiters, as in 2005-06-24 Currently, I use the following practice: dates("2005-06-24", format="y-m-d") Is there a recommended documentation page that thoroughly describes all the possible "environment" settings in addition to some such "date" setting? TIA, Mike _ platform i686-pc-linux-gnu arch i686 os linux-gnu system i686, linux-gnu status major 2 minor 1.0 year 2005 month 04 day 18 language R
On 6/26/05, Mike R <mike.rstat at gmail.com> wrote:> Is there a way in R to globally setup a default format for dates for all, or > nearly all, or just "many" R date/time-related functions? > > For example, dates in library(chron) expects, by default, MDY with > forward-slash delimiters, whereas my habit and my data sets tend to > be YMD with dash delimiters, as in 2005-06-24 > > Currently, I use the following practice: > > dates("2005-06-24", format="y-m-d") > > Is there a recommended documentation page that thoroughly describes > all the possible "environment" settings in addition to some such "date" > setting?The Date class uses the yyyy-mm-dd format by default so you could just use the Date class. The global variables used by chron do not include a default format but the ones that do exist and other information on dates is discussed in the Help Desk article in R News 4/1.