Ok. I really have 15 days to plot, the x-axis is the date, and it is going to the MINUTES in a day. I have to plot a curve per day (so 15 plots)
The real data is like this: 2012-02-01 00:01:00; 2100 2012-02-01 02:02:00; 2200 ... 2012-02-15 23:58:00; 2400 2012-02-15 23:59:00; 2400 -- View this message in context: http://r.789695.n4.nabble.com/how-to-plot-several-curves-in-the-same-frame-tp4354165p4354523.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.