ead to creating underwhelming visualisations as no arcs appear. One can consider adding simple heiristics to the <code>gio</code> function to ensure that is not the case, or have the function throw a warning when the initial country is not present in the dataset.</p>
<p>Finally, consider R users’ expectations. There are many prominent visualisation packages on CRAN already, users of the gio package will likely have used ggplot2 <span class="citation">(Wickham, Chang, et al. <a href="#ref-R-ggplot2">2020</