How do you make dual y-axes in Plot ?

It’s not supported out of the box, but here are a few links showing possibilities: Dual-axis bar-line chart (#147) / Fil / Observable Plot facets with varying scales? - #2 by Fil

I find a useful design rule-of-thumb to be whenever contemplating a dual-axis chart, ask yourself whether two juxtaposed charts, or a connected scatterplot might be more effective. I’m not experienced with Plot, but it would appear both are possible. Worth re-emphasising Lisa Charlotte Muth’s artic…

Now easier with the axis mark (though it still requires some manual transformation): [image] Plot: Dual axis line chart Use with care. See also.

It is worth mentionning this recent official (mbostock) notebook: [image] Plot: Dual axis chart To implement a dual-axis chart, we remap efficiency to its equivalent value in sales using a linear scale. Ref. #147.

Dual y-axes in Plot ?

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Fil January 31, 2022, 2:04pm 2

It’s not supported out of the box, but here are a few links showing possibilities:

Dual-axis bar-line chart (#147) / Fil / Observable
Plot facets with varying scales? - #2 by Fil

Topic		Replies	Views
Dual Axis Line chart like robinhood Help	7	1214	December 23, 2022
Two Plots same x-axis, different y-axis (categorical and numeric) Help	2	205	February 3, 2025
Plot facets with varying scales? Help	2	1412	September 9, 2021
Plot, sharing same x-axis for different charts Help	2	520	September 13, 2021
Grouped Bar Chart with multiple Y-Axis Help	0	91	October 29, 2024

Dual y-axes in Plot ?

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