></span><span class="op">(</span><span class="fl">1</span>, mean <span class="op">=</span> <span class="fl">2</span>, sd <span class="op">=</span> <span class="fl">1</span><span class="op">)</span><span class="op">)</span> 
    <span class="op">}</span> <span class="kw">else</span> <span class="op">{</span>
      <span class="co"># if tails...</span>
      <span class="va">to_return</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></spa