Rosie-Larson

Rosie Larson

Angie Hjort

good use of js Map and you did the ghetto dodgeY transform! 
really cool. you evidently have learned the basics, meaning that you now have versatile tools for any situation and it can take you anywhere.

at some points you start looking if a common problem has a common solution that you don't have to reinvent, so as a challenge you can try https://observablehq.com/plot/transforms/dodge

i tried just now, here are the configs for dodge transform i found good

Plot.dot(buffaloOrders, Plot.dodgeY( {
      r: 3, padding: 0.5, anchor: "middle",
....

and of course it will destroy your Y formula, so move sizes to facetY instead