is plot compatible with arquero data tables?

deeper integration between Plot and Arquero is being worked on: https://observablehq.com/d/eab191ed35920c7c

Yes, you can pass Arquero table instances (and Apache Arrow table instances) directly to Plot for use as data.

`Swatches` is not in use?

it's the color legend in the second cell of this notebook—in a future version, Plot will be able to create its own color legends (actually based on the code for swatches)

example updated to the new mark-level facet syntax (unpublished changes)

and we can republish

One subtlety to be wary of with this example is that z order matters: the visualization will look different depending on whether the blue rects are drawn on top of the orange rects or vice versa. You can see this by including `z: d => d.sex=='female',` in the second argument to Plot.bin.

Yes. This can be addressed with mixBlendMode: "multiply", but unfortunately that renders more slowly (in today’s browsers at least). The density mark might be a better choice for comparing overlapping two-dimensional distributions.