[R] R Date Time

[Dirk Eddelbuettel]

On 25 April 2017 at 18:05, Duncan Murdoch wrote:
| On 25/04/2017 5:41 PM, Dirk Eddelbuettel wrote:
| >
| > On 25 April 2017 at 16:04, Jeff Reichman wrote:
| > | R Users
| > |
| > | Having problems converting the following DTG into an R recognized date/time
| > | field
| > |
| > | 01-01-2016T14:02:23.325
| > |
| > | Would I separate it into a date field and time filed then put it back
| > | together???
| >
| > The anytime package (on CRAN) does this (and other date or datetime input
| > variants) without requiring a format:
| >
| >   R> library(anytime)
| >   R> anytime("01-01-2016T14:02:23.325")
| >   [1] "2016-01-01 14:02:23.325 CST"
| 
| How does it decide between MDY and DMY orderings in dates?  Doesn't 
| matter for this example, but it would for "01-02-2016T14:02:23.325"

See 

    http://dirk.eddelbuettel.com/code/anytime.html

    https://github.com/eddelbuettel/anytime

    https://github.com/eddelbuettel/anytime/blob/master/src/anytime.cpp#L43-L106

for overview(s), some comments, notes and in particular the set of formats.

It has a strong preference for sane (ie ISO formats) but in the case of
ambiguity it (grudingly) prefers the (silly) US way:

    R> anytime("01-02-2003")
    [1] "2003-01-02 CST"
    R>

But I try not to miss an opportunity that the format should really not be used.

Dirk

-- 
http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org