I have pieced together ten simple questions that test how well someone knows what they are doing in R.
I find Sankey diagrams super useful for illustrating flows of people or preferences. The networkD3 package in R offers a straightforward way to generate these diagrams without needing to know the ins and outs of the actual D3 code.
The London Tube Map is a seminal piece of design. Anyone who has looked at it remembers what it looks like.
In April, I permanently deleted my Facebook presence. I joined in 2008 and was fairly active over the years. In the process of deleting my account, I downloaded all my data.
I build R Shiny apps quite a lot, and one of the common uses is to allow dynamic filtering of the underlying data, so that you can adjust a chart or a table based on some particular subset of interest.