/conditions.html" class="external-link">tryCatch</a></span><span class="op">(</span></span></span>
<span class="r-in"><span>     <span class="fu">rquery_apply_to_data_frame</span><span class="op">(</span><span class="va">d</span>, <span class="va">optree</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>     error <span class="op">=</span> <span class="kw">function</span><span class="op">(</span><span class="va">e</span><span class="op">)</span> <span class="op">{</span> <span class="f