Hi Everyone, I want to make 3 lines on the same graph (not as subplots, all in the same window, one on top of each other) and I want them to be quantile-quantile plots (qqplot). Essentially, I am looking for the equivalent of Matlab's "hold on" command to use with qqplot. I know I can use 'points' or 'lines', but these do not give me a qqplot (only appear to work as scatter plots). I found the syntax 'par(new=TRUE)' but that only seems to work for two lines, not for three.
My script currently looks like: qqplot(nq.n5,tq.n5,col="red",xlab="Normal Distribution Quantiles",ylab="t Distribution Quantiles",main="Quantile-Quantile Plot of Normal vs t-Distribution for Various Sample Sizes",pch=20) par(new=TRUE) qqplot(nq.n50,tq.n50,col="blue",xlab="",ylab="",pch=20). par(new=TRUE) qqplot(nq.n500,tq.n500,col="green",xlab="",ylab="",pch=20) legend("topleft",c("n=5","n=50","n=500"),fill=c("red","blue","green")) I realize that this only plots the first and the third qqplot because by doing par(new=TRUE) again, it gets rid of the middle one. I don't know how to get around this and get all 3 lines on the same plot. Can anyone please help me with this syntax? Thank you very much for your time and advice! Cheers, Melissa -- View this message in context: http://r.789695.n4.nabble.com/making-multiple-lines-using-qqplot-tp4375273p4375273.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.