Thank you for your precious help. It works fine. However, what about if I have two entries in the legend?
I tryed: legend('topright', inset = .05, title = 'light ratios', pch = c(21,22), legend = c(substitute('Green/Red' ~~ R^2 == r2, list(r2=r2)),substitute('Green/Red' ~~ R^2 == r2, list(r2=r2))), horiz = FALSE, pt.bg = c('gray', 'black'), cex = 0.75, bg = 'white') But it does not work. Regards, Phil -- View this message in context: http://r.789695.n4.nabble.com/Legend-tp4103799p4104386.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.