 run the expr, stays silent if the expression succeeds, and returns error or warnings if any.</p>
<div class="sourceCode" id="cb9"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb9-1" title="1"><span class="kw"><a href="reference/silent_attempt.html">silent_attempt</a></span>(<span class="kw">log</span>(<span class="st">"a"</span>))</a>
<a class="sourceLine" id="cb9-2" title="2"><span class="co"># Error: non-numeric argument to mathematical function</span></a>
<a class="sour