>options()</code> to control the displayed text. This includes the <code>digits</code> option for controlling the number of significant digits used for numerical values as well as <code>scipen</code> for setting a penalty for deciding whether scientific or fixed notation is used for displaying. Figure <a href="controlling-tooltips.html#fig:format-options">25.8</a> shows how you can temporarily set these options (i.e., avoid altering of your global environment) using the <strong>withr</strong> package <span 