an class="op">(</span><span class="fl">0</span>, <span class="fl">1</span>, by <span class="op">=</span> <span class="fl">.1</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu">comp_acc</span><span class="op">(</span><span class="va">prev.range</span>, <span class="fl">.5</span>, <span class="fl">.5</span><span class="op">)</span>  <span class="co"># =&gt; 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</spa