%OS on output
On Wed, Feb 24, 2016 at 10:40 AM, Suharto Anggono Suharto Anggono via
R-devel <r-devel at r-project.org> wrote:
R help on 'strptime' has the following in "Details" section.
Specific to R is ?%OSn?, which for output gives the seconds truncated to ?0 <= n <= 6? decimal places (and if ?%OS? is not followed by a digit, it uses the setting of ?getOption("digits.secs")?, or if that is unset, ?n = 3?).
In reality, for output, if '%OS' is not followed by a digit and getOption("digits.secs") is unset, the output has no fractional part, as if n = 0 is used.
That's because n = 0 _is_ used, and appears to have always been the default (since the logic was added in r37395). So this appears to be a typo in the documentation (the comment about "n=3" when digits.secs is unset was added in r37439).
getOption("digits.secs")
NULL
z <- strptime("20/2/06 11:16:16.683", "%d/%m/%y %H:%M:%OS")
format(z, "%OS")
[1] "16"
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