MATLAB Answers

How do I change the font size in my legend?

When I attempt to change the font size of the text in a legend using the code shown below, the text becomes very large:
plot(rand(4))
AX=legend('One','Two','Three','Four');
LEG = findobj(AX,'type','text');
LEG.FontSize = 10;

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Answer by MathWorks Support Team on 12 Jun 2017
 Accepted Answer

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)

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ali jebeli comments:
does not work
ali jebeli: which MATLAB version are you using?
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.

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Answer by Mukesh Jadhav on 9 Oct 2016

Here you go :
h = legend('x','y','z');
set(h,'FontSize',12);

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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

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Answer by odo22
on 1 Dec 2016

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

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Answer by Samson Msgna on 23 Mar 2018

How can we solve Error using CreateDatabase (line 22) Not enough input arguments.
Error using EigenfaceCore (line 20) Not enough input arguments.

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

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