Suppose I've specified that the xlab for a plot is expression(bold(species~(italic(N1))))
In other words, I want the axis label to be bold, italic 'species (N1)' Now, I want the title for the plot to be have this label embedded in the title. Say, 'This is the plot for Species (N1)'. For a variety of reasons, I've set this up so that the xlab is a global parameter (basically, because the labels are set in a function which when called, generates various plots): x_label <<- expression(bold(species~(italic(N1)))) So, in the title, I've tried title(main=paste("This is the plot for ",x_label,"nullcline", sep=" ")); but what this does is generate something like 'This is the plot for bold(species~(italic(N1)))' In other words, it pastes the text of the expression into the title, but not what the expression 'evaluates' to. Is there any way around this? Thanks in advance... [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.