On 7/2/09, Rolf Turner <r.tur...@auckland.ac.nz> wrote: > > On 3/07/2009, at 11:29 AM, Hongwei Dong wrote: > > > > Hi, I'm trying to plot two variables in one graph. One ranges between 0 > and > > 1, while the other ranges between 50 and 500. Can I plot them in one graph > > with similar scale? > > > > Yes you can, but DON'T!!! Such graphs are terribly misleading and > confusing. > > But if you insist --- and be it on your own head --- see > > http://wiki.r-project.org/rwiki/doku.php?id=tips:graphics-base:2yaxes > > Don't say I didn't warn you! > > cheers, > > Rolf Turner
Add color. Make one data set red, the other blue. Colorize the y axises appropriately. then it's reasonable and I find in some cases useful. (Wish I knew how to do it in R...) I agree - in black and white it's almost useless. cheers, Mark ______________________________________________ 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.