.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"Invalid"</span>, <span class="st">"N/A"</span>, <span class="st">"Missing"</span>, <span class="st">"Miss"</span>, <span class="cn">NA</span>, <span class="st">"(Missing)"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="kw">for</span> <span class="op">(</span><span class="va">i</span> <span class="kw">in</span> <span class="fl">1</span><span class="op">:</span><span class="fu"><a href="htt