[R] Expression

[Guenther, Cameron]

Hi all,
I have a question about expression.

In a figure I want to include the term D*obs with the star as as
superscript and obs as subscript.  I have even just tried to get the
star to be superscript.

 
The code I tried was 
text(Dstar+7,120,expression(paste({}D,^*))), but that doesn't work and I
get a syntax error.
 
I can't seem to find anything in the help files that explains it.
 
Thanks in advance.

Cameron Guenther, Ph.D.
100 8th Ave. SE
St. Petersburg, Fl 33701
727-896-8626 ext. 4305
cameron.guenther at myfwc.com