Plot.plot({
projection: "albers-usa",
r: {range: [0, 16]},
color: {scheme: "spectral", label: "hmm", legend: true},
marks: [
Plot.geo(statemesh, {strokeOpacity: 0.5}),
Plot.geo(nation),
Plot.dot(vehicles, Plot.hexbin({r:"sum"}, {x: "1", y: "0", r: "Electric (EV)"}))
]
})