This is very weird!! I know the 'lty=1' command and I tried yesterday , many times!! didnt work.
However, today, it worked!!! Maybe the university's computer is stupid! Thanks! -- View this message in context: http://n4.nabble.com/legend-help-tp1461992p1470216.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.