x_expand</dt>
<dd><p>A vector of range expansion constants used to add padding to the x scale, as per the ggplot2 expand argument in ggplot2 scales functions.</p></dd>


<dt>x_labels</dt>
<dd><p>A function or named vector to modify x scale labels. Use ggplot2::waiver() to keep x labels untransformed.</p></dd>


<dt>x_title</dt>
<dd><p>X scale title string. Defaults to NULL, which converts to sentence case with spaces. Use "" if you would like no title.</p></dd>


<dt>x_title_wrap</dt>
<dd><p>Number of chara