Hello, I have strings with date-/time-data from a logfile. For a sort-by-time (and other time-related analysis) I need something to convert the times to the Unix-epoche-time (better also with parts of seconds). Is there something that does that job (or a similar conversion) in R? TIA, Oliver Bandel
If you are using POSIXct, just 'unclass' the value:> x <- as.POSIXct('2008-09-12 09:00') > str(x)POSIXct[1:1], format: "2008-09-12 09:00:00"> unclass(x)[1] 1221210000 attr(,"tzone") [1] "" On Fri, Sep 12, 2008 at 9:15 AM, Oliver Bandel <oliver at first.in-berlin.de> wrote:> Hello, > > > I have strings with date-/time-data from a logfile. > > For a sort-by-time (and other time-related analysis) > I need something to convert the > times to the Unix-epoche-time (better also with parts > of seconds). > > Is there something that does that job (or a similar conversion) > in R? > > TIA, > Oliver Bandel > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve?
On Fri, 12 Sep 2008, Oliver Bandel wrote:> Hello, > > > I have strings with date-/time-data from a logfile. > > For a sort-by-time (and other time-related analysis) > I need something to convert the > times to the Unix-epoche-time (better also with parts > of seconds). > > Is there something that does that job (or a similar conversion) > in R?as.numeric, unsurprisingly, for class "POSIXct" (and as.POSIXct if needed ...). It can be to sub-second accuracy (use %OS to read such fields). -- Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
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