an><span class="op">}</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/lines.html" class="external-link">lines</a></span><span class="op">(</span><span class="va">ctd3</span><span class="op">[[</span><span class="st">"salinity"</span><span class="op">]</span><span class="op">]</span>, <span class="va">ctd3</span><span class="op">[[</span><span class="st">"pressure"</span><span class="op">]</span><span class="op">]</span>, col <span c