Plotly has a nice way of making click-events available to the calling language, but it doesn’t quite work simply when using subplot(). This isn’t a post about a new feature, but I didn’t quickly find a resource for it so I’ll add my findings to make it easier for the next person. Plotly (as a graphics library) is a JavaScript library that has been ported to R, Python, Julia, and - surprising to me - MATLAB and F#. It provides an interactive plotting framework that works really nicely ...
