2</span></code>. The <code class="docutils literal"><span class="pre">AAMI2</span></code> is equal to <code class="docutils literal"><span class="pre">AAMI</span></code> except that only consider
three heartbeat classes, <em>normal</em> (N), <em>ventricular</em> (V) and <em>supraventricular</em> (S).</div></blockquote>
<p><code class="docutils literal"><span class="pre">user_string</span></code> — A string to individualize each experiment. <code class="docutils literal"><span class="pre">''</span> <span c