an>)
set(gca,<span class="string">'xlim'</span>, [1 52]);
xlabel(<span class="string">'Week of year'</span>);
ylabel(<span class="string">'Ice extent'</span>);
</pre><pre class="codeoutput">A = 
  struct with fields:

     cent: [52&times;2 double]
    bndlo: [52&times;2 double]
    bndhi: [52&times;2 double]
    errlo: [52&times;2 double]
    errhi: [52&times;2 double]
h = 
  struct with fields:

       ln: [1&times;2 Line]
    patch: [1&times;2 Patch]
</pre><img vspace="5" hspace="5" src="ensemble2bnd_doc