Possible? Yes. (see fortune("Yoda")) Automated using the legend function? No Automated using another function? possbly somewhere in the 4,000+ packages on CRAN, but I don't know which.
It is doable with the basic tools. You could either find a part of your graph with open area to put the legend in, or you could use the layout function to create a second smaller blank graph beside yours to use for the legend. Use the rect function to draw a rectangle around where you want the legend to be, choose some values of myvariable that you want to show sample circles for, then use symbols again to draw those circles and text to draw the matching values next to the circles. The following functions may be of use in choosing how big to make the rectangle and where to place the circles and text within the rectangle: strwidth, strheight, grconvertX, grconvertY, and the inches argument to symbols. On Thu, Oct 18, 2012 at 3:31 AM, Marion Jacquot <marion.jacq...@univ-fcomte.fr> wrote: > I generated maps with the function symbols (graphics). These are basic maps > generated with : > > symbols(x,y,circles=myvariable) > > where x et y are spatial coordinates corresponding to replicates of > "myvariable". > > I would associate legend to this kind of maps, is it possible? > > Regards, > Marion. > > > -- > Marion Jacquot > Laboratoire de Chrono-environnement > UMR UFC/CNRS 6249 USC INRA > Université de Franche-Comté > Place Leclerc > F-25030 Besançon cedex > FRANCE > Tel. : +33 (0)381 665 829 > Fax : +33 (0)381 665 797 > http://chrono-environnement.univ-fcomte.fr/ > > ______________________________________________ > 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. -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.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.