title: How to change axis linewidth and fontsize in Octave
body: <p>I am trying to resize some plots in Octave. I've been able to change the line thickness and axis labels. However, I cannot find a way to make the axes themselves thicker, or the numbers larger.</p>
  
  <p>What I've found online uses set(), like</p>
  
  <pre><code>plot(x, y, "linewidth",5);
  h=get(gcf, "currentaxes");
  set(h, "fontsize", 12, "linewidth", 2);
  </code></pre>
  
  <p>or</p>
  
  <pre><code>set(gca, 'linewidth', 4);
  </code></pre>
  
  <p>But, I am continuing to see the errors</p>
  
  <pre><code>invalid property 'linewidth'
  invalid property 'fontsize'
  </code></pre>
  
  <p>even though they are listed as properties in the <a href="http://www.gnu.org/software/octave/doc/interpreter/Axes-Properties.html#Axes-Properties" rel="noreferrer">Octave documentation</a></p>
  
  <p>What am I doing wrong?</p>
  
  <p>Or, what else can I try?</p>