="p">=</span><span class="w"> </span><span class="nf">read_signal</span><span class="p">(</span>ECG_start_idx, ECG_end_idx<span class="p">)</span><span class="w"></span>
</pre></div>
</div>
<p>where the arguments are:</p>
<blockquote>
<div><p><strong>ECG_start_idx</strong>, is the first sample to read. <code class="docutils literal"><span class="pre">1</span> <span class="pre">(default)</span></code>.</p>
<p><strong>ECG_end_idx</strong>, is the last sample to read. <code class="docutils literal"><span class