G Ilhamto wrote: > Dear R-list, > > I want to combine several plots in one graph. > I did this: plot(a1); plot(a2, add=TRUE); ...plot(a5, add=TRUE) > The problem is the more plot we put, the more complex the graph. > Is there any way to label each line; or other way just to make sure I know > which one which? > Hi Ilham, At a guess, you want to distinguish the points, lines or other elements that represent a1, a2, ...
You can use different symbols for the points (pch=...), different colors (col=...) for the lines or circles or rectangles, different line types (lty=...) for the lines,... plot(1:10) points(1:10+0.2,rnorm(10)+5,pch=2) lines(1:10-0.2,sample(1:10,10),col="green") Jim ______________________________________________ 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.