How do I change the font size in my legend?

How do I change the font size of the labels in my legend? For example, how do I make the font size of the ‘One’, ‘Two’, ‘Three’, ‘Four’ labels bigger in my plot?

plot(rand(4))
lgd=legend('One','Two','Three','Four');

Answer 1

[MathWorks Support Team]

You can change the font size for a MATLAB legend by setting the 'FontSize' property of the Legend object.

For example, plot four lines. Create a legend and assign the Legend object to the variable 'lgd'. Then, use dot notation to access the 'FontSize' property and set the value to 14 points.

plot(rand(4))
lgd = legend('One','Two','Three','Four');
lgd.FontSize = 14;

Alternatively, you can specify the 'FontSize' property using a name-value pair argument in the 'legend' command. When including name-value pair arguments, include the legend labels in a cell array. For example:

legend({'One','Two','Three','Four'},'FontSize',14)

[Walter Roberson]

ali jebeli comments:

does not work

[Walter Roberson]

ali jebeli: which MATLAB version are you using?

[FastCar]

I had the same problem, I am using version 2016b. The Legend box became bigger but the text rermains small.

What can I do?

edit: I needed to change manually, very frustrating. Unconvenient for such an expensive software.

[Jordan Fliss]

This problem sounds like the one I am experiencing now. After I changed the setting I saved the figure as a .fig, closed the figure window, then loaded the figure again (by simply double clicking it). After the figure reloaded my legend font changes were implemented.

Answer 2

[Mukesh Jadhav]

Here you go :

    h = legend('x','y','z');
    set(h,'FontSize',12);

[Tuyen Nguyen]

Hi I am using 2015b. "h= legend('x','y','z'); set(h,'FontSize',12); worked really well and it is good when we need the axes' labels in bigger sizes However it took a very long time to proceed for such two simple lines! please advise

[Jamil Khan]

legend('x','y','z'),set(legend,'fontsize',12);

this works aswell, you dont have set the legend as an object

Answer 3

[odo22]

l = legend('1', '2', '3');
l.FontSize = 40;

Answer 4

[Samson Msgna]

How can we solve Error using CreateDatabase (line 22) Not enough input arguments.

Error using EigenfaceCore (line 20) Not enough input arguments.

[Walter Roberson]

This appears to refer to https://www.mathworks.com/matlabcentral/fileexchange/17032-pca-based-face-recognition-system

You need to pass the path of the directory containing the data to EigenfaceCore . See the example.m file for example.