title: How to change font size of x axis?
body: <p>Is there any way to change the font size property of x axis in MATLAB for a figure? I need to change the size of the values in x axis (not the title, that one could modify with <code>xlabel</code> property). I have the next piece of code:</p>
  
  <pre><code>%% Some figure properties:
  width=15;height=20;alw=0.75;
  
  %% Figure:
  for i=1:8
        figure;set(gcf,'color','white');
        pos=get(gcf, 'Position');
        set(gcf, 'Position', [pos(1) pos(2) width*100, height*100]);
        set(gca, 'LineWidth', alw);axis off;
        axes('position',[0.06 0.08 0.87 0.38])
        plot(0:24,s(i).obs(:,1),'linewidth',2,'color','b');hold on;
        plot(0:24,s(i).sim(:,1)-273.15,'linewidth',2,'color','r');
        legend('Obs','Sim','location','northeastoutside');
        set(gca,'xtick',0:24,'xticklabel',0:24);
        set(gca,'ytick',2:2:28,'yticklabel',2:2:28);
        xlabel('Hour');ylabel('[°C]');axis([0 24 2 28]);grid on;
        axes('position',[0.06 0.53 0.87 0.38]);
        plot(s(i).time.obs,s(i).serie.obs,'b');hold on;
        plot(s(i).time.sim,s(i).serie.sim-273.15,'r');
        datetick('x','myy');axis tight;grid on;
        legend('Obs','Sim','location','northeastoutside');
        title([s(i).name ', porcNaN: ' num2str(roundn(s(i).rnan,-1)) ...
            '%, period: '  datestr(s(i).period(1,:),20) ' - '...
             datestr(s(i).period(2,:),20)],'fontsize',12);
        ylabel('[°C]');set(gca,'fontsize',8)
        image_name=['temp_sup_' s(i).name];
        print(image_name,'-dpng','-r600')
  end
  </code></pre>
  
  <p>"s" is a struct. The problem is the values in the x axis of the second plot (the figure above), datetick put all months and years values, I need this information (each one month), but they're very close together. I know the "fontsize" property, but this property change the font size in the two axis (x and y), and I need only change the x axis.</p>