span class="op">)</span></span>
<span></span>
<span><span class="va">affyids</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">"202763_at"</span>,<span class="st">"209310_s_at"</span>,<span class="st">"207500_at"</span><span class="op">)</span></span>
<span><span class="va">ensembl</span> <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/pkg/biomaRt/man/useMart.html" class="ext