How can I change axis font size only in a figure?

I would like to change only the axis font size in a figure. How can I do this?

My code is:

clear
clc
close all
x=linspace(0,4*pi,10)
y=x.^2.*sin(x);

f1=figure
f1.Units='centimeters'
f1.Position = [30 30 100 100]/10;
f1.Name='Measured Data'
hold on
plot(x,y,'m-','LineWidth',3)
plot(x,y,'m^','MarkerSize',14,'LineWidth',3)
xlabel('seconds','FontSize',15,...
       'FontWeight','bold','Color','r')
ylabel('Population','FontSize',15,...
       'FontWeight','normal','Color','r')
grid on
title('x vs. t, and example plot')
legend('y','y(data points)','Location','best')
axis([min(x) max(x) min(y) max(y)])
text(2,-40,'The angle of the wheel \theta')

Then the figure is

If I write

set(gca,'XLim',[min(x) max(x)],'FontSize',20)

command, then the figure becomes:

However I want to change only x axis and y axis font size. Not others to change. How can I don this?

Thanks in advance.

Answer 1

[Voss]

clear
clc
close all
x=linspace(0,4*pi,10);
y=x.^2.*sin(x);

f1=figure;
f1.Units='centimeters';
f1.Position = [30 30 100 100]/10;
f1.Name='Measured Data';
hold on
plot(x,y,'m-','LineWidth',3)
plot(x,y,'m^','MarkerSize',14,'LineWidth',3)
xlabel('seconds','FontSize',15,...
       'FontWeight','bold','Color','r')
ylabel('Population','FontSize',15,...
       'FontWeight','normal','Color','r')
grid on
title('x vs. t, and example plot')
legend('y','y(data points)','Location','best')
axis([min(x) max(x) min(y) max(y)])
text(2,-40,'The angle of the wheel \theta')

set([get(gca(),'XAxis') get(gca(),'YAxis')],'FontSize',20);

[ercan duzgun]

@_ thank you very much.

[ercan duzgun]

@_ And how to change only xtick/ytick values font size, but not x/y axis name?

How can I do something similar to this:

[Voss]

You can set the FontSize of the x/ylabel after setting the FontSize of the x/y-axis itself:

clear
clc
close all
x=linspace(0,4*pi,10);
y=x.^2.*sin(x);

f1=figure;
f1.Units='centimeters';
f1.Position = [30 30 100 100]/10;
f1.Name='Measured Data';
hold on
plot(x,y,'m-','LineWidth',3)
plot(x,y,'m^','MarkerSize',14,'LineWidth',3)

grid on
title('x vs. t, and example plot')
legend('y','y(data points)','Location','best')
axis([min(x) max(x) min(y) max(y)])
text(2,-40,'The angle of the wheel \theta')

set([get(gca(),'XAxis') get(gca(),'YAxis')],'FontSize',20);

xlabel('seconds','FontSize',15,...
       'FontWeight','bold','Color','r')
ylabel('Population','FontSize',15,...
       'FontWeight','normal','Color','r')

[ercan duzgun]

@_ Thank you very much.

[Voss]

@ercan duzgun You're welcome!