data sequence.</p>
<div class="toggle docutils container">
<p>[Ap, Phi] = ApEn(Sig)</p>
<p>Returns the approximate entropy estimates (<code class="docutils literal notranslate"><span class="pre">Ap</span></code>) and the log-average number of 
matched vectors (<code class="docutils literal notranslate"><span class="pre">Phi</span></code>) for <code class="docutils literal notranslate"><span class="pre">m</span></code> = [0, 1, 2], estimated from the data 
sequence (<code class="docutils literal notranslate"