Hello I have a file with this format
2005-01-03 09:05 0.00 2005-01-03 09:10 0.01 2005-01-03 09:15 0.02 2005-01-03 09:20 0.03 2005-01-03 09:25 0.04 2005-01-03 09:30 0.05 2005-01-03 09:35 0.06 2005-01-03 09:40 0.07 2005-01-03 09:45 0.08 2005-01-03 09:50 0.09 2005-01-03 09:55 0.10 2005-01-03 10:00 0.00 2005-01-03 10:05 0.00 .... some data may be missing And I need to keep just the rows with time multiple of 15sec 2005-01-03 09:15 0.02 2005-01-03 09:30 0.05 2005-01-03 09:45 0.08 2005-01-03 10:00 0.00 ....... How can I do it? thanks -- View this message in context: http://r.789695.n4.nabble.com/remove-rows-tp2328312p2328312.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
