On Fri, 20 Jul 2018, William Dunlap wrote:
You mean each line in the file, not row in data.frame, has the form "year-month-day,hour:min,numericValue". Try the following, where tfile names your file:
Bill, Yes, I was looking at the data file in one emacs buffer and my R session in another one. The source file was what I posted, the data.frame is different: head(wy2016) date time elev 1 2015-10-01 00:00 90.6689 2 2015-10-01 01:00 90.6506 3 2015-10-01 02:00 90.6719 4 2015-10-01 03:00 90.6506 5 2015-10-01 04:00 90.6597 6 2015-10-01 05:00 90.6841 It's all fixed now and I've learned how to handle future typos from all of you. Thanks, Rich ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.