[R] Expression in legend of plot

stat.kk stat.kk at gmail.com
Thu Oct 25 13:21:26 CEST 2012

I would like to have an expression f^(-1)(x) in a legend of plot. For this I
used expression(f^{-1}(x)), but  variable is always in exponent. How could I
change it in order to (x) be in a line, not in exponent?
Thank you for your responses!

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