a></span><span class="op">(</span><span class="va">adm_enr</span><span class="op">$</span><span class="va">SAT_V</span><span class="op">[</span><span class="op">!</span><span class="fu"><a href="https://rdrr.io/r/base/NA.html" class="external-link">is.na</a></span><span class="op">(</span><span class="va">adm_enr</span><span class="op">$</span><span class="va">SAT_V</span><span class="op">)</span><span class="op">]</span>, <span class="fl">.25</span><span class="op">)</span>,</span>
<span>                  