title: Matlab boxplot for multiple fields
body: <p>I have this matlab file which has a field called "data". In "data" I have lots of fields for different bonds (x5Q12... etc).
  <img src="https://i.stack.imgur.com/iEKzc.png" alt="enter image description here"> </p>
  
  <p>I am trying to produce ONE box plot that contains ONE column from each of the fields (i.e. a box diagram with 36 boxes in it). I tried this code (e.g. to plot a box for column 2 in all of the bonds) but it does't work for me:</p>
  
  <pre><code>boxplot(gilts_withoutdates.data.:(:,2));figure(gcf);
  </code></pre>
  
  <p>I know my understanding of calling different levels in a structure is a problem here. Any suggestions, please? Many thanks.</p>