I have a dataframe obtained using read.csv from an excel file. Its first column is times, running from 18:00 to 19:30. If I want to plot other columns against time, do I need to convert those somehow, and how would I do that?
If I run plot(b$time,b$myvar) I get a decent plot, but a friend suggests that R is just treating those numbers as text, and putting them in alphabetical order. True? [[alternative HTML version deleted]] ______________________________________________ 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.