How to write an overline notation in ylabel

Hi, I would like to write an overline notation above a variable in y label. My code doesn't work at all. Could you please suggest a solution Thanks

figure
yyaxis left
hold on
plot(d,o_DD_abs,'r-s','LineWidth',3,'MarkerSize',15)
plot(d,o_SA_abs,'k-o','LineWidth',3,'MarkerSize',15)
hold off
xlabel('R / r_0')
*ylabel('\color{black} \bar{s} in | M | (%)')*
axis tight
ylim([0 120]) 
xlim([1 4])
yticks([0 40 80 120])
ax = gca;
ax.YColor = 'black';
yyaxis right
hold on
plot(d,o_DD_pha,'-^','LineWidth',3,'MarkerSize',15)
plot(d,o_SA_pha,'-v','LineWidth',3,'MarkerSize',15)
hold off
ax = gca;
ax.YColor = 'black';
legend('D&D | M |','New Formulae | M |','D&D \phi( M )','New Formulae \phi( M )')
set(findall(gcf,'-property','FontName'),'FontName', 'Times New Roman','fontsize',50)

Answer 1

[Naty Shemer]

Are you familiar with the interpreter and text functions?

https://www.mathworks.com/help/matlab/ref/text-properties.html

Look under interpreter

[Shan Chu]

Hi, Thank you for your reply. But it didn't work when I have a text and a symbol

[Naty Shemer]

If you are having trouble with the matlab default interpreter try the Latex one. This should be able to do whatever you want..