[R] special symbols into a text string

[S Ellison]

See ?plotmath,  especially the examples.

S

>>> Gerard Smits <g_smits at verizon.net> 03/14/10 3:38 PM >>>
All,

I am trying to put a few special symbols into a string to place on a
graph (e.g., >= and superscript 2).  

This clearly works, but does not look good:   text<-c("x2", "A>=B")

I tried pasting in the >= symbol, but just comes out as an =.

I have tried expression() with no luck:  text<-c("x2", expression(x^2))

Any help appreciated.

Thanks,

Gerard
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