u</span></code>    - Window length, an integer &gt; 1</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">S</span></code>      - Number of slices, an integer &gt; 1</p></li>
<li><dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">Xrange</span></code> - The min and max heartbeat interval,</dt><dd><p>a two-element vector where X(1) &lt; X(2)</p>
</dd>
</dl>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">Logx</span></code>   -