[R] Combining math and variables in expression

I am trying to get the following line in a plot margin using mtext: 100% Area = 120.000 km^2 Where I intend that 100% Area = is text, 120.000 is a number that varies according to different data, and km^2 should be a neat km-with-superscript-2. The expression function fails me, since it

Re: [R] Combining math and variables in expression

- project.org] On Behalf Of socrates Sent: Wednesday, March 11, 2009 8:08 AM To: r-help@r-project.org Subject: [R] Combining math and variables in expression I am trying to get the following line in a plot margin using mtext: 100% Area = 120.000 km^2 Where I intend that 100% Area = is text

Re: [R] Combining math and variables in expression

Dear socrates; It did not take me 2.5 hours but it did take longer than I thought it would. I worked off the example given by Henrique Dallazuanna seen at: http://finzi.psych.upenn.edu/R/Rhelp08/archive/120065.html This seems to work: mtext(bquote(100~% ~ Area == ~ .(text.val)~ Km^2),