I should have perhaps phrased my previous post better as: the result of bquote() is a language expression argument of mode "call" which gets evaluated by the plotmath functionality in your first plot call, but gets evaluated in the global environment in the second before being passed back to the plot.default method that will be called by plot.formula to do the plot.
-- Bert Gunter -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Schools Statistics Poster Competition Sent: Thursday, January 24, 2008 5:58 PM To: R-help mailing list Subject: [R] Using bquote: question Hi all Observe: x <- c(1,2) y <- c(1,-1) phi <- 1 p <- 2 par( mfrow=c(1,2)) plot(x , y, main=bquote( paste( p==.(p)," and ",phi==.(phi)) ) ) plot(y ~ x, main=bquote( paste( p==.(p)," and ",phi==.(phi)) ) ) par( mfrow=c(1,2)) On my system (details below), the first plot is correct (in my understanding), and produces a title reading "p=2 and phi=1" (with appropriate Greek for phi). However, the second produces the title "TRUE and TRUE". Is this a bug, or a misunderstanding or my part(in which case, I'm sure I'll be told the obscure location where this is documented!)? Thanks. P. > sessionInfo() R version 2.6.0 (2007-10-03) i486-pc-linux-gnu locale: LC_CTYPE=en_AU.UTF-8;LC_NUMERIC=C;LC_TIME=en_AU.UTF-8;LC_COLLATE=en_AU.UTF-8 ;LC_MONETARY=en_AU.UTF-8;LC_MESSAGES=en_AU.UTF-8;LC_PAPER=en_AU.UTF-8;LC_NAM E=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_AU.UTF-8;LC_IDENTIFICATION =C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] tweedie_1.5.3 statmod_1.3.0 loaded via a namespace (and not attached): [1] rcompgen_0.1-15 > This email (including any attached files) is confidentia...{{dropped:15}} ______________________________________________ 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. ______________________________________________ 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.