         |    - &#39;j,ab&#39;: calculates both &#39;j&#39; and &#39;ab&#39; options </span>
<span class="sd">            |              and returns them as a tuple.</span>
<span class="sd">        :avg:</span>
<span class="sd">            | None, optional</span>
<span class="sd">            | None: don&#39;t calculate average DE, </span>
<span class="sd">            |       otherwise use function handle in :avg:.</span>
<span class="sd">        :avg_axis:</span>
<span class="sd">            | axis to calcu