I have been trying to figure out how to get superscript/subscript in the
main title for a plot. I have tried various approaches and suggestions but
none of them work. I am trying to get the following as the main title of my
plot:

Emission of CO2 with time

(but note that 2 is subscript.)

I have tried

plot(main="Emission of C"expression(O[2]) "with time")

and I get error message. I have also tried

plot(main="Emission of C"quote(O[2]) "with time")

I have also tried

plot(main"")
mtext("Emission of C"expression(O[2]) "with time")

I keep getting errors. I have searched the archives but none of the threads
seem to touch upon this. I would appreciate any suggestion. Regards,

Tariq

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