This final installment in our series on using the Highcharts accessibility module with {highcharter} is basically “extra credit.” (Read: I took the time to figure this out, so I’m sharing it. But, it’s probably not the most helpful post if you’re just trying to get the accessibility module working with {highcharter}.) We covered enabling the accessibility module, and getting basic keyboard navigation in part one.

Back in the first post in this series I mentioned that the impetus for this whole endeavor was Silvia Canelón’s excellent collection of R-specific resources for making data visualizations more accessible (Canelón 2021). I wanted to fill the gap between the possibilities afforded by Highcharts’ accessibility module, and documented examples of module use with the {highcharter} package (Kunst 2021). Don’t worry, I have pull requests in the works

In the first two parts of this series we introduced the Highcharts accessibility module, the {highcharter} R package, and created some working examples with accessibility features turned on. Here, we’ll follow in the vein as part 2 by re-creating one of the accessible chart demos from Highcharts.

Today we’ll be using the Joshua Kunst’s {highcharter} package to re-create the first example from the Highcharts documentation for its accessibility module, an accessible line chart showing screen reader popularity over time, as an htmlwidget.

Over the past few weeks I’ve been experimenting with the accessibility module from Highcharts using the {highcharter} package by Joshua Kunst. Highcharts is an SVG-based library for making interactive charts for the web.