Implementing a circular barplot in R
The R code you will find in this section is inspired by the code shared with the entire R community by the R Graph Gallery website (https://www.r-graph-gallery.com/index.html). In addition to a few very small additions, we refactored and generalized the code into the circular_grouped_barplot() function using the tidy evaluation framework (check the references for further details) so that it can be used with any dataset.
If you remember correctly, in R functions you saw in previous chapters, you passed column names to functions as strings. Thanks to tidy evaluation, you can pass them to functions using tidyverse grammar, that is, passing them directly through a pipeline. Take the following example:
circular_grouped_barplot(data = speakers_tbl, grp_col_name = 'Characteristics', ...
