Can't change xtick font size in Matlab subplot - matlab

Question

I'd like to change the font size of the x & y tick labels, but have only been able to change the size of the y tick labels.
Below is the code that changes only the font size of the y tick labels:
figure(1);
for z=1:length(percentsolar)
for i=1:h
percentimprovement4(:,i) = percentimprovement2(1,:,i,z,1);
end
ax(z) = subplot(3,2,z);
boxplot(percentimprovement4);
set(ax(z), 'fontsize', 6);
ylabel('% improvement', 'fontsize',8,'fontweight', 'bold');
xlabel('Hour of the day', 'fontsize', 8,'fontweight', 'bold');
title(['PF improvement for ', num2str(percentsolar(z)),'% solar penetration'], 'fontsize', 10 ,'fontweight', 'bold');
clear percentimprovement4
end
linkaxes(ax);
saveas(gcf,'Boxplotshourly.jpg');

Answer 1

As written here:
boxplot() uses the default axes labeling for the Y axes, but for the X
axes, it uses text() to put the labels in place and it does not
grab the axes FontSize when it does so.
Thus, in addition to set(ax(z), 'fontsize', 6); you should also use set(findobj(ax(z),'Type','text'),'FontSize', 6);. For example,
figure(1);
percentsolar = zeros(1,6);
z = 6;
ax = zeros(0, length(percentsolar));
for z = 1:length(percentsolar)
ax(z) = subplot(3,2, z);
x1 = normrnd(5,1,100,1);
x2 = normrnd(6,1,100,1);
boxplot([x1, x2]);
set(ax(z), 'fontsize', 6);
set(findobj(ax(z),'Type','text'),'FontSize', 6);
ylabel('% improvement', 'fontsize',8,'fontweight', 'bold');
xlabel('Hour of the day', 'fontsize', 8,'fontweight', 'bold');
end