ref="https://dplyr.tidyverse.org/reference/across.html" class="external-link">across</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"SATVR25"</span>, <span class="st">"SATVR75"</span>, <span class="st">"SATVR50"</span>,</span>
<span>                    <span class="st">"SATMT25"</span>, <span class="st">"SATMT75"</span>, <span class="st">"SATMT50"</span><span class="op">)</span>, </span>
