[R] strptime format = "%H:%M:%OS6"

[jim holtman]

According to the documentation, '%OS6' is only for output, not for
conversion on input.

Specific to R is %OSn, which for output gives the seconds 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).
Further, for strptime %OS will input seconds including fractional
seconds. Note that %S ignores (and not rounds) fractional parts on
output.



On Tue, Feb 15, 2011 at 11:39 AM, Sam Steingold <sds at gnu.org> wrote:
> I read a dataset with times in them, e.g., "09:31:29.18761".
> I then parse them:
>> all$X.Time <- strptime(all$X.Time, format = "%H:%M:%OS6");
> and get a vector of NAs (how do I check that except for a visual inspection?)
> then I do
>> options("digits.secs"=6);
>> all$X.Time <- strptime(all$X.Time, format = "%H:%M:%OS");
> and it, apparently, works:
>> all$X.Time[2]-all$X.Time[1]
> Time difference of 5.12188 secs
> so, why doesn't format = "%H:%M:%OS6" work as documented?
>
>
> --
> Sam Steingold (http://sds.podval.org/) on CentOS release 5.3 (Final)
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-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?