I'd recommend to remove this warning, or make it clear that it doesn't apply to this particular notebook.

Example for Plot: ~~~js plotData = dr.generator() ~~~ ~~~js Plot.dot(plotData, { x: "0", y: "1", r: 3, stroke: (d, i) => classes[i], symbol: (d, i) => classes2[i] }).plot() ~~~

TriMap seems to only produce NaN.

I think it should work now with the newer version of DruidJS.

The penguins dataset is now available out of the box, as part of Observable's Standard Library. :)

Thanks :)