Subscript and superscript on one symbol; plotmath.

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? :-)

They let you guys go to the pup again? :-)-O

el

On 09/12/2020 10:06, Rolf Turner wrote:
[...]

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? :-)

[...]
--
Dr. Eberhard W. Lisse   \         /       Obstetrician & Gynaecologist
el at lisse.NA             / *      |  Telephone: +264 81 124 6733 (cell)
PO Box 8421 Bachbrecht  \      /  If this email is signed with GPG/PGP
10007, Namibia           ;____/ Sect 20 of Act No. 4 of 2019 may apply

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.

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.

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.

On Wed, 9 Dec 2020 06:18:10 -0500
Duncan Murdoch <murdoch.duncan at gmail.com> wrote:

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.

<SNIP>

Dang!!! I was sure that that's one of the variants I'd tried!!!
Duh.  This is indeed exactly what I want.  Thanks Duncan.