# Showing average of a value using Bar sign in Matlab

I want to use bar sign (a line above a variable) to show the average of a variable. I found this code:

plot(randn(100,1));
ylabel('$\bar{ABCDEFG}-T5$','interpreter','latex')


but this line is small. Is there a way to make it same as length of the variable?

ylabel('$\overline{ABCDEFG}-T5$', 'interpreter','latex')


I found out for using it in legend we should say

legend({'$\overline{ABCDEFG}-T5$'},'interpreter','latex');


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