# How can I use XTickLabel with a bigger font in a subplot

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Gianluca Regina on 17 Mar 2021
Commented: Gianluca Regina on 17 Mar 2021
Dear MatLab users,
I have a tiny graphic problem. I am using a subplot(1 , 2 , 1) and (1,2,2) type, and I would like my XTickLabel being in decimal and with a relatively large fontsize. However, in the example below, which uses the same format of the plot that I need, if I put the fontsize_axis equal or greater than 19, the command XTickLabel does not work anymore, meaning that it puts the label in the wrong order. However, there is enough space for the fontsize to be at least 22 and more. Is there a way to fix this or do it in another way? I can use " set(gca,'XLim',[0.001 1], 'XTick', 10.^(-3:0))" instead, but I do not want it in exponential notation.
a = 10*rand(1,5);
b = rand(1,5);
fontsize_axis = 19 ;
subplot(1 , 2 , 1)
semilogx(a,b)
axis([0.001 10 0 1])
set(gca ,'Fontsize', fontsize_axis ,'FontWeight','bold')
ax = gca ;
ax.XTickLabel={'0.001' , '0.01' , '0.1' ,'1' , '10'};
set(gcf , 'color','w' , 'WindowState' , 'Maximize')

Jan on 17 Mar 2021
Problems occur, if the number of XTicks differs from the number of XTickLabels. So set both:
a = 10*rand(1,5);
b = rand(1,5);
fontsize_axis = 19 ;
subplot(1 , 2 , 1)
semilogx(a,b)
axis([0.001 10 0 1])
set(gca ,'Fontsize', fontsize_axis ,'FontWeight','bold', ...
'XTickLabel', {'0.001' , '0.01' , '0.1' ,'1' , '10'}, ...
'XTick', [0.001, 0.01, 0.1, 1, 10]);
set(gcf , 'color','w' , 'WindowState' , 'Maximize')
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Gianluca Regina on 17 Mar 2021
This works perfectly, thank you!

R2020b

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