s="op">(</span><span class="op">)</span>,</span>
<span>        axis.ticks.y <span class="op">=</span> <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/element.html" class="external-link">element_blank</a></span><span class="op">(</span><span class="op">)</span><span class="op">)</span></span></code></pre></div>
<p>We want to know a bit more about some directives from the early 1970s
that are still in force today. Their titles could give us a clue.</p>
<div class="sourceCode" id="cb16"><pre 