dbl), comuna (dbl+lbl), sexo (dbl+lbl), expc (dbl),</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   varunit (dbl), varstrat (dbl)</span>
<span class="r-in"><span class="va">cd</span><span class="op">$</span><span class="va">grupos</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># A tibble: 12 × 2</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                 comuna       sexo</span>
<span class="r-out co"><span class="