pan class="va">G</span> <span class="op">&lt;-</span> <span class="va">bigsnp</span><span class="op">$</span><span class="va">genotypes</span></span></span>
<span class="r-in"><span><span class="va">y</span> <span class="op">&lt;-</span> <span class="va">bigsnp</span><span class="op">$</span><span class="va">fam</span><span class="op">$</span><span class="va">affection</span> <span class="op">-</span> <span class="fl">1</span></span></span>
<span class="r-in"><span><span class="va">corr</span> <span class="