I would like to have sigma and epsilon in greek symbols in y and x axis respectively (with latex interpreter)

I would like to have sigma and epsilon in greek symbols in y and x axis respectively (with latex interpreter).

I have the following code, but it does not work as I wish:

T1 = readtable('PVC_Dogbones_media.xlsx', 'VariableNamingRule','preserve')

figure

plot(T1.('epsilon'), T1.('sigma'), '-k', 'LineWidth',0.5)
grid

xlim([0 0.5])
ylim([0 50])

ylabelname = sprintf('$${\tau}$$ [Pa]','${D_{i}}$' );
ylabel(ylabelname, 'fontsize', 11, 'interpreter', 'latex')
set(gca,'xticklabel',num2str(get(gca,'xtick')','%.2f'))

L=legend('PVC','Location','best');
set(L,'Interpreter','latex')
set(gca,'TickLabelInterpreter','latex')

xlabel(sprintf('$$\epsilon$$ [mm]','${D_{i}}$'), 'Interpreter','latex')
ylabel(sprintf('$${\tau}$$ [Pa]','${D_{i}}$'), 'Interpreter','latex')

Answer 1

[Yazan]

What are you trying to achieve with the sprintf function?? Use the following to name the X- and Y-axis:

x = randn(1, 128);
plot(x)
xlabel('$\epsilon$ [-]', 'interpreter', 'latex');
ylabel('$\sigma$ [MPa]', 'interpreter', 'latex')

[Francesco Marchione]

Yes, but for the y-axis it still does not work:

T1 = readtable('PVC_Dogbones_media.xlsx', 'VariableNamingRule','preserve')
figure
plot(T1.('epsilon'), T1.('sigma'), '-k', 'LineWidth',1.1)
grid
xlim([0 0.5])
ylim([0 50])
xlabel('$\epsilon$ [-]', 'Interpreter','latex');
ylabel('$\sigma$ [MPa]', 'Interpreter','latex');
ylabel(ylabelname, 'fontsize', 11)
set(gca,'xticklabel',num2str(get(gca,'xtick')','%.2f'))
L=legend('PVC','Location','best');
set(L,'Interpreter','latex')
set(gca,'TickLabelInterpreter','latex')

Answer 2

[Sulaymon Eshkabilov]

xlabel('$\epsilon$', 'interpreter', 'latex'); ylabel('$\tau$', 'interpreter', 'latex')

[Francesco Marchione]

Thank you. I have modified my code in this way:

T1 = readtable('PVC_Dogbones_media.xlsx', 'VariableNamingRule','preserve')
figure
plot(T1.('epsilon'), T1.('sigma'), '-k', 'LineWidth',1.1)
grid
xlim([0 0.5])
ylim([0 50])
xlabel('$\epsilon$ [-]', 'interpreter', 'latex');
ylabel('$\sigma$ [MPa]', 'interpreter', 'latex')
ylabel(ylabelname, 'fontsize', 11)
set(gca,'xticklabel',num2str(get(gca,'xtick')','%.2f'))
L=legend('PVC','Location','best');
set(L,'Interpreter','latex')
set(gca,'TickLabelInterpreter','latex')

but the y axis is not properly configured:

Answer 3

[Sulaymon Eshkabilov]

xlabel('\epsilon, [-]'); ylabel('\tau, [MPa]')

Answer 4

[Francesco Marchione]

This line prevented the correct labeling of the y axis

ylabel(ylabelname, 'fontsize', 11)