Weighted dotplots

[mjskay]

Occurs to me a simple version of this is dots/ellipses or squares that have different vertical sizes (easier layout problem than circles that have different radii, and more correct anyway). Something like a geom_weighted_dots(). Would need to do a bunch of stuff:

• finally implement use of arbitrary layout algorithms in the binwidth finding algorithm (e.g. a shortcut version of each layout alg that just returns max height)
• possibly allow limited support for shapes (at least ellipses, squares, maybe rounded rectangle or a pill shape, maybe even reimplement all pch shapes manually but allow stretching, or at least use the affine transforms to do it).
• implement a geom_weighted_dots() and stat_weighted_dots() (for rvars at least).
• possibly give a warning (maybe with option to turn it off --- or just tell people to unset the weights aesthetic) if weights are used with geom_dots(), suggesting folks used geom_weighted_dots()?
• also consider if this should be a more visual aesthetic (like "dotheight" or "dotextent" or ???) that weights from a dist could be mapped onto?

[CharlesSnt]

Hello. I am new to the package and together with another student and
under the supervision of [@katossky / @JMeyer31] we are willing to solve this
issue, as part of an assignment at the ENSAI school of statistical engineering
(France). We will try to be as autonomous as possible but we may ask for guidance from now and then. We
have a solid background in statistics and a reasonable one in computer science.
If any maintainer thinks this issue is too ambitious for a beginner, please tell
us so and - if you have time - guide us to a project / issue were our help may
be more useful.

[katossky]

@CharlesSnt I think that is not a beginner-friendly issue. "use of arbitrary layout algorithms in the binwidth finding algorithm" makes it sound like you definitely need deep understanding of ggdist. If you like coding and complexity, however, you may proceed.