1) Use dput() to submit data. 2) Would this work? (It requires your data are evenly spaced, but I think that's it) d[seq(1, nrow(d), by = 3), ]
Michael On Wed, Dec 14, 2011 at 7:17 AM, abcdef ghijk <lineh...@yahoo.com> wrote: > Good Morning , > > I want to sample the following time series for every third hour. For example > at 00:00,03:00,06:00,09:00 etc. > > > 2011-01-01 00:00:00 0.000000e+00 > 2011-01-01 01:00:00 1.471667e+01 > 2011-01-01 02:00:00 1.576667e+01 > 2011-01-01 03:00:00 0.000000e+00 > 2011-01-01 04:00:00 0.000000e+00 > 2011-01-01 05:00:00 0.000000e+00 > 2011-01-01 06:00:00 0.000000e+00 > 2011-01-01 07:00:00 0.000000e+00 > 2011-01-01 08:00:00 0.000000e+00 > 2011-01-01 09:00:00 1.826667e+01 > 2011-01-01 10:00:00 0.000000e+00 > 2011-01-01 11:00:00 0.000000e+00 > 2011-01-01 12:00:00 0.000000e+00 > 2011-01-01 13:00:00 0.000000e+00 > 2011-01-01 14:00:00 0.000000e+00 > 2011-01-01 15:00:00 0.000000e+00 > 2011-01-01 16:00:00 0.000000e+00 > 2011-01-01 17:00:00 0.000000e+00 > 2011-01-01 18:00:00 0.000000e+00 > 2011-01-01 19:00:00 0.000000e+00 > 2011-01-01 20:00:00 0.000000e+00 > 2011-01-01 21:00:00 7.010000e+01 > 2011-01-01 22:00:00 7.154167e+02 > 2011-01-01 23:00:00 2.039167e+02 > 2011-01-02 00:00:00 3.703000e+02 > 2011-01-02 01:00:00 9.130167e+02 > 2011-01-02 02:00:00 0.000000e+00 > 2011-01-02 03:00:00 0.000000e+00 > Thanks in advance. > Regards, > Shan > > [[alternative HTML version deleted]] > > > ______________________________________________ > R-help@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. > ______________________________________________ R-help@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.
