[R] Subscript and superscript on one symbol; plotmath.
Duncan Murdoch
murdoch@dunc@n @end|ng |rom gm@||@com
Wed Dec 9 12:18:10 CET 2020
On 09/12/2020 3:06 a.m., Rolf Turner wrote:
>
> I would like to produce, as graphical annotation, the Greek letter sigma
> with a superscript of 2 and a subcript of 11. (I.e. the top left hand
> entry of a covariance matrix.)
>
> I've tried:
>
> plot(1:10,main=expression({sigma^2}[11]))
>
> (and variants). This "sort of" works but there is an undesirable
> gap between the sigma and the subscript 11. (IOW the subscript is to
> the right of the superscript, whereas ideally the first "1" in "11"
> should be vertically below the superscript.
When I run
plot(1:10,main=expression(sigma[11]^2))
I think I get what you want.
Duncan Murdoch
>
> I've also tried (hammer and hope!):
>
> plot(1:10,main=expression(sigma*atop(scriptstyle(2),scriptstyle(11))))
>
> and again this "sort of" works but places the putative superscript a
> bit too high and the putative subscript a bit too low.
>
> Is there any way to achieve, with plotmath, an effect like unto that
> produced by the LaTeX expression $\sigma^2_{11}$? Or should I just
> give up and go to the pub? :-)
>
> cheers,
>
> Rolf Turner
>
> P.S. I've explicitly CC-ed Paul Murrell, who is obviously the go-to
> guy on such matters, in case he does not regularly monitor this list.
>
> R. T.
>
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