[R] legend mathematical annotation problem

[Mark Heckmann]

1) I need to plot a legend containing the mathematical symbol greater- 
than-or-equal sign.
And I want the text to start with that symbol.

plot(110, 0.8)
categories <- expression(blank >= 85, 84.9 - 80, 79.9 - 75, 74.9 - 70,  
69.9 - 65, 64.9 - 60, blank< 60)
legend(110, 0.8, categories, lty=1:7, lwd=3, col=1, merge=TRUE)

What I want is just ">=85" to be printed, but without something (here  
"blank") in front it is no correct expression.

2) Also I want German type decimals, that is a comma instead of a point.
But the problem is, that the comma is used as argument separator in  
expression.

plot(110, 0.8)
categories <- expression(blank >= 85, 84,9 - 80, 79,9 - 75, 74,9 - 70,  
69,9 - 65, 64,9 - 60, blank< 60)
legend(110, 0.8, categories, lty=1:7, lwd=3, col=1, merge=TRUE)

This does obviously not work. Any ideas?

Thanks,
Mark
–––––––––––––––––––––––––––––––––––––––
Mark Heckmann
Dipl. Wirt.-Ing. cand. Psych.
Vorstraße 93 B01
28359 Bremen
Blog: www.markheckmann.de
R-Blog: http://ryouready.wordpress.com