A sizeable part of the book concerns data visualisation, it plunges into creating interactive outputs with the htmlwidgets package. This opens with a brief overview of how it works and libraries that make great candidates to integrate with the htmlwidgets package. Then a first, admittedly unimpressive, widget is built to look under the hood and observe the inner-workings of such outputs to grasp a better understanding of how htmlwidgets work. Next, we tackle a more substantial library that allows drawing arcs between countries on a 3D globe, which we cover in great depth. The last two chapters go into more advanced topics, such as security and resizing.
Finally, the book concludes with some noteworthy remarks on where to go next.
Early reviewers also shared precious feedback that helped make the book dramatically better, thanks to Maya Gans, Felipe Mattioni Maturana, and Wei Su for thoroughly going through every line of the book.
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