Create a new advanced calculations section of the example gallery

[palewire]

No description provided.

[joelostblom]

I am leaning towards accepting the move of this and the violin plot PR #2648 , but I am not 100% certain since the current "Other" section is similar to Vega-Lite's "Advanced" section. I guess the question is whether we want to only classify charts by the type of mark they use, or how they are thought of conceptually (i.e. violins are not not just a type of area chart, but a distinct category on its own).

We currently have density charts under "Area charts" so with that logic it would make sense to move violins as well. If we move these two, I think we should also move the pyramid pie to the "circular plots" section, "Multiple marks" the Lineplots, Ridgeplot to Area, Wilkinson to Scatter, and Highlighted segment to Barplots.

What do you think @mattijn

[mattijn]

Hm, good one. The VL counterpart is 'Advanced Calculations'. This calculations part is not something to ignore. If I look to the altair specifications of these parallel coordinate plots, I would say the pith of the matter is on the calculations part and not on the line part.
So I would suggest to introduce a section on advanced calculations or maybe even better, advanced transformations.
If this means the altair other section will be renamed or recategorized, that's OK.

[palewire]

I'm a fan of the greater specificity of your proposal. One of the things that inspired me to submit this PRs is that I find the "other" category a bit too vague. I will revise my proposal to fit the idea.

[palewire]

That's done. All of the other charts have been moved into a new Advanced Calculations section. IMHO, we could find better homes for a few of these. But I figured let's do this one step at a time.

[joelostblom]

Thanks for changing, I think this looks good! One minor thing to get the CI to pass (I accepted this commit suggestion myself just to trigger the CI now).

[palewire]

I resolved conflicts from upstream merges and our tests are now passing.