="op">&gt;</span> <span class="fl">1962</span> <span class="op">&amp;</span> <span class="va">year</span> <span class="op">&lt;</span> <span class="fl">1968</span><span class="op">)</span></span></span>
<span class="r-err co"><span class="r-pr">#&gt;</span> <span class="error">Error:</span> object 'babynames' not found</span>
<span class="r-in"><span><span class="fu">ggplot</span><span class="op">(</span>data <span class="op">=</span> <span class="va">bn</span>,</span></span>
<span class="r-in"><span>      