le, perhaps you'd like to see interquartile ranges as well as the minimum and maximum.  In this case, it may make more sense to use the median as the center line rather than the mean:</p><pre class="codeinput">cla
ensemble2bnd(1:52,ice, <span class="string">'dims'</span>, <span class="string">'xey'</span>, <span class="string">'plot'</span>, <span class="string">'boundedline'</span>, <span class="keyword">...</span>
    <span class="string">'cent'</span>, <span class="string">'median'</span>, <span class="s