Plotly

Chaos Butterfly

From before I hit publish on part 2, I had people telling me that the graphs were cool and they wanted their version. I briefly considered making a page with 404 graphs on it - 2 graphs $$*$$ 2 sexes $$*$$ 101 age groups. Then I remembered that this is a webpage, not a static document, and Javascript is a thing. I discovered the rather useful htmlwidget plotly, which adds interactivity and drops some of the painful aspects of ggplot.