Add percentage symbol (%) on contour lines (2019a)

Help! I want to add the percentage symbol (%) after the elevation label (ex: 1%, 3%, 5%) in a contour plot (photo attached). Is there any way to do this? I have read about clabel, but I am not sure it can do this. Thank you in advance!

Answer 1

[Yazan]

Use '%%' to write the '%' symbol:

fprintf('%%\n');

[Ni Made Ayu Sinta Dewi]

Can you specify where I should add this to my program? It looks like this so far:

e=[10 5 3 1,10 5 3 1];
[C,h]=contour(X,Y,E,e,'ShowText','on','LineWidth',2.5);
xlabel('k_2/k_1')
ylabel('m_1/m_2')
grid on
grid minor

Thank you in advance!

[Yazan]

Now I understand better what you are after. The following might help you

e=[10 5 3 1,10 5 3 1];
% do not show the text
[C,h] = contour(X,Y,E,e,'LineWidth',2.5);
xlabel('k_2/k_1')
ylabel('m_1/m_2')
grid on
grid minor

Then

ax = gca;
clabel(C);
allTxt = findobj(ax, 'Type', 'Text');
set(allTxt, {'String'}, append(get(allTxt, 'String'), '%'))

[Ni Made Ayu Sinta Dewi]

This worked! Is it possible to put the label in the lines? Currently, the text is upright. I tried using clabel(C,h,e) where e=[10,5,3,1], but it produced an error. Thank you in advance!

[Yazan]

I am not sure how to make the labels follow the curvatures of the lines. I couldn't figure out how to have access to this feature. You still can rotate the labels easily by a given degree.

[Ni Made Ayu Sinta Dewi]

Thank you anyway!

[Yazan]

Overall, I believe the best practice in your case is to just divide the levels by 100, as they are percentages, and keep the default level visualization by Matlab.