<p>Reorder a column before plotting with faceting, such that the values are
ordered within each facet. This requires two functions: <code>reorder_within</code>
applied to the column, then either <code>scale_x_reordered</code> or
<code>scale_y_reordered</code> added to the plot.
This is implemented as a bit of a hack: it appends ___ and the</p>…