How to include a character with a macron (horizontal bar) in a legend?

I am trying to put a macron over an "s" in a legend string. I have tried LaTeX syntax, but it does not work. This is my code:

hLegend(3) = legend([h1, h2, h3], ...
            '\it{r_{123}}', ...
            '| \it{r_{123}} |', ...
            '\it{$\bar{s}$_{123}}');
set(hLegend(3), 'interpreter','latex');

And this is the warning I get

Warning: Unable to interpret LaTeX string
"\it{r_{123}}" 
Warning: Unable to interpret LaTeX string
"| \it{r_{123}} |" 
Warning: Unable to interpret LaTeX string
"\it{$\bar{s}$_{123}}"

Any idea what I could be doing wrong?

Answer 1

[Oleg Komarov]

Workaround as described in NG: Matlab and Latex

plot(1:10)
h = legend('$\bar{s}$');
set(h,'interpreter','Latex','FontSize',18)

[Adriano]

I tried this and it does not work, please see the edit of my question. Thanks :)

[Oleg Komarov]

You have to include the whole latex statement in between the $$:

hLegend(3) = legend('$\it{r_{123}}$', ...

'$| \it{r_{123}} |$', ...

'$\rm{\bar{s}_{123}}$');

set(hLegend(3), 'interpreter','latex');

[Adriano]

Excellent, even though the font changes to LaTex one, it works perfectly. Thanks :)

[Oleg Komarov]

The thing about the font is a known issue, there are some workarounds on the Newsgroup or on CSSM directly.

[Adriano]

Thanks, that works

Answer 2

[Arturo Moncada-Torres]

Complementing Oleg's answer, I include one of the workarounds he suggest.

[Adriano]

Thank you very much