Observable

Mike Bostock

A concise API for exploratory data visualization

Observable Plot

Broken link: *rect* mark should link to /@observablehq/plot-rect

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The z channel was removed in favor of the sort transform.

Bairui SU

Oops, no, this was right as it was originally: the quantitative dimension is required, while the ordinal dimension is optional. What’s a little confusing in the hadcrut example is that the ordinal dimensional is here temporal—but we’re using the interval option to treat it as ordinal.