How to format Rsuperscript 2 followed by = value

Hi Nevil,

the function bquote() should do what you want:
(found here: http://r.789695.n4.nabble.com/expression-td904189.html)

mtext(bquote(R^2==.(round(summary(mylm)$r.squared,3))),1)

Regards,
Sina R?eger

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