[</span>,<span class="st">"freq"</span><span class="op">]</span>,breaks<span class="op">=</span><span class="va">brks</span>,xlab<span class="op">=</span><span class="va">xlbl</span>,col<span class="op">=</span><span class="st">"gray60"</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="histFromSum-5.png" alt="" width="700" height="433"></span>
<span class="r-in"><span><span class="co"># formula from a data.frame</span></span></span>
<span class="r-in"><span><span class="fu">his