How to write theta - theta bar as a axis label

Good afternoon,

I am trying to plot a Bland Altman plot, but I would like to have the x-axis labelled as theta- theta bar however, this should be in mathematical symbols.

How would I do this?

I have tried a couple of variations:

     for y = 1:20
        scatter(young_av{1,y}, young_er{1,y}, 10, "Filled");
        hold on
        scatter(young_av{1,y}, young_er{1,y}, 10, "Filled");
        grid on 
        xlim([-30 50])
        ylim([-10 10])
        xlabel('\theta' - '$\bar{\theta}$', 'Interpreter','Latex')
        ylabel('Error (deg)')
        legend("Young")
     end   

Answer 1

[Aquatris]

scatter(1:10,rand(1,10) , "Filled");
grid on 
xlabel('$\theta$ -  $\bar{\theta}$','interpreter', 'latex')