I like the notebook, but I’m tempted to make the README description more hand-wavy. I feel like either we explicit document the logic in pseudocode, or we just leave it vague like: “If a height is not specified, Plot will attempt to chose a reasonable default height based on the y and fy scale types and, for ordinal scales, the cardinality of the domain. The default height ranges from TK to TK, with 400 for the common case where y is quantitative and fy is not present.”

We could publish the notebook and link to it for details.

(Notebook further updated to take #837 into account.)

18 months later, it's published :) https://observablehq.com/@observablehq/plot-default-height

didn't mean to close the PR!