How to generate plot titles with the latex interpreter and larger font sizes?

I am trying to generate plot titles that include mathematical terms (generated with LaTeX) but also larger font sizes (so that they don't become impossibly tiny when shrunk by the publisher). I seem to be able to get one or the other, but not both. With the following code

plot(x, y, 'k', 'LineWidth', 2)
title('\fontsize{10} *{\cal{R}}(t)* Model 2', 'interpreter', 'latex')

(note, please mentally replace the * symbols with $ symbols - I had to make the change to shut off the text interpreter in this question window!) I obtain plots with the correct fontsize, but uninterpreted text (i.e. {\cal{R}}(t) - and the \fontsize command! - appear typed-out in the title). If, instead, I use the code

plot(x, y, 'k', 'LineWidth', 2)
title('*{\cal{R}}(t)* Model 2', 'interpreter', 'latex')

the LaTeX interpreter works fine, but of course the font is too small. I also tried a fix that I found among Matlab answers:

plot(x, y, 'k', 'LineWidth', 2)
hT = title('*{\cal{R}}(t)* Model 2', 'interpreter', 'latex')
set(hT, 'FontSize', 10)

but that produced the same result as the previous text (properly interpreted title, but with the smaller font size). I tried resetting the figure settings to default values using reset(figname), but that didn't help either. I would be grateful for any help on this question!

Answer 1

[madhan ravi]

Use handles and assign the size directly:

plot(x,y, 'k', 'LineWidth', 2)
h=title('*{\cal{R}}(t)* Model 2', 'interpreter', 'latex');
h.FontSize=20;

[Rebecca Tyson]

Sadly, that doesn't work either. :( I get the properly interpreted text, but no change in fontsize. Am I supposed to have another command after the third line above to force MATLAB to implement the FontSize command?

[madhan ravi]

Wierd this is what I get , it work's perfectly

[Rebecca Tyson]

Did you replace the asterisks with dollar signs? They're supposed to be dollar signs, but to turn off the MATLAB question window text interpreter I had to use asterisks.

[madhan ravi]

I just did the following and it works:

plot(1:10, 'k', 'LineWidth', 2)
h=title('${\cal{R}}(t)$ Model 2', 'interpreter', 'latex');
h.FontSize=50;

Answer 2

[Rebecca Tyson]

I believe you! It doesn't work on my computer though - weird. :(

[BNB]

I guess it will be too late now, but I wanted to add that I was thinking to have the same problem. Until I understood that the size of the text interpreted by the latex interpreter is a lot smaller than normal text size. Thus, you may think it is not working, but in fact, you only have to increase the font size value by a larger number. You can try some very different numbers like 1 and 100 to see if this is the case.

(I am using MATLAB R2018a)

[Rebecca Tyson]

Thank you very much! I will more than likely be wanting to use the LaTeX interpreter again in the future, so your answer is not too late!