ass="op">=</span> <span class="va">gwas</span><span class="op">$</span><span class="va">std.err</span>,</span></span>
<span class="r-in"><span>                      n_eff <span class="op">=</span> <span class="fl">4</span> <span class="op">/</span> <span class="op">(</span><span class="fl">1</span> <span class="op">/</span> <span class="fu"><a href="https://rdrr.io/r/base/sum.html" class="external-link">sum</a></span><span class="op">(</span><span class="va">y</span> <span class="op">==</span> <span class="