Implement dodge by shifting each category if necessary, based on the dodge vector

[asinghvi17]

With all this handling, maybe we should move the category code into the recipe? But then there would be no control from the algorithm's end.

[TheCedarPrince]

To make sure I am understanding what you are saying with dodging, you are imagining a sort of dodging figure like this:

Out of curiosity, what is the process you are imagining? I am struggling to imagine what the API would look like with:

beeswarm(categories, ys, dodge = ?)

[asinghvi17]

Yep, that's what I'd envision. Dodging would mutate the xs of position before applying calculate. Similar to bar/violin plots.

[TheCedarPrince]

Gotcha -- how would we want to handle dodge grouping? Would we want to just have an API like Makie's boxplot:

using CairoMakie

categories = rand(1:3, 1000)
values = randn(1000)
dodge = rand(1:2, 1000)

boxplot(categories, values, dodge = dodge, color = dodge)

Or were you thinking of something else?

[asinghvi17]

Nope, it would be pretty much that. Maybe we could hoist the category utilization code out of calculate! and into the main onany block...

[TheCedarPrince]

Brilliant! Last question -- how would we want to gutterize! dodged groups? Would there be the typical gutter per category overall but then also like an inside_gutter dimension that would set thresholds inside the category between dodged groups?

What do you think @asinghvi17 ? Either way, I'll work on a naive implementation to see what I can do here. I like the idea of hoisting things by the way. But maybe, let's wait until we have the feature fleshed out some more before we do a bit more of an overhaul?

[asinghvi17]

I would imagine so - but that could also be based on the dodge width!

There is already a readymade utility function in Makie for dodging:
https://github.com/MakieOrg/Makie.jl/blob/14b65a0e8c786030f095cfe37860e6eaeec39eaa/src/basic_recipes/barplot.jl#L101-L115

and the way violin (probably the closest plot to a beeswarm) manages it is by using multiple attributes to control dodge.
https://github.com/MakieOrg/Makie.jl/blob/14b65a0e8c786030f095cfe37860e6eaeec39eaa/src/stats/violin.jl#L26-L29