"refs" class="references">
<div id="ref-R-echarts4r">
<p>Coene, John. 2020a. <em>Echarts4r: Create Interactive Graphs with ’Echarts Javascript’ Version 4</em>. <a href="http://echarts4r.john-coene.com/">http://echarts4r.john-coene.com/</a>.</p>
</div>
<div id="ref-R-testthat">
<p>Wickham, Hadley. 2020. <em>Testthat: Unit Testing for R</em>. <a href="https://CRAN.R-project.org/package=testthat">https://CRAN.R-project.org/package=testthat</a>.</p>
</div>
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            </section>

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