pan class="st">"x"</span>, <span class="fl">1</span><span class="op">:</span><span class="fl">4</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">res</span> <span class="op">&lt;-</span> <span class="fu"><a href="mx_profiles.html">mx_profiles</a></span><span class="op">(</span><span class="va">dat</span>, <span class="fl">1</span><span class="op">:</span><span class="fl">3</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu">plot_densi