link">setdiff</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/pkg/bigparallelr/man/seq-dim.html" class="external-link">rows_along</a></span><span class="op">(</span><span class="va">X</span><span class="op">)</span>, <span class="va">ind</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">scores.test2</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/stats/predict.html" class="external-link">predict</a></span><sp