title: axis.XTickLabelrotation for plotyy in MATLAB 2014b doesn't work
body: <p>I have MATLAB 2014b installed in my PC the code:</p>
  
  <pre><code>h.XTickLabelRotation = 60;
  </code></pre>
  
  <p>Rotation part works but the XTickLabel is hiding and even the 'xlabel'. i have date&amp; time on x-axis and would like to rotate by 60°. Here is the code I wrote:</p>
  
  <pre><code>x= {'09.02.2015 12:15:12' '09.02.2015 12:16:12' '09.02.2015 12:17:12'};
  x = datenum(x,'dd.mm.yyyy HH:MM:SS');
  y=[20 35 15];
  plotyy(x,y,x,y-10)
  datetick('x',31,'keepticks')
  h=gca;
  h.XTickLabelRotation = 60;
  xlabel('Date&amp;Time');
  </code></pre>
  
  <p>It is working fine for plot but doesn't work for plotyy. Is there a trick to solve this issue?</p>