@JAnstee_WMF, @egalvezwmf Our main problem right now with the edit bins is that the initial set I proposed (the "N bins") has small buckets on the high and low ends, which leads some of the final bins to be too small (you can see the sizes in this notebook).

To fix this, I'm suggesting we use a set of more evenly-sized bins (the "E bins") and combine the Sub-Saharan Africa Wikipedia group (which is very small) with the Middle East and North Africa group.

The E bins would still preserve comparability with last year. The only downsides are:

• The smallest Wikidata bin remains small (8 users)
• The bin sizes are less normal-looking. However, I don't really understand that requirement so I can't judge; if you explain which statistical technique we need it for, I could make a more informed recommendation :)

Seems a good solution to use E bins, we should perhaps exclude the smallest bin in populations with less than 20 in that group

In T188999#4046730, @JAnstee_WMF wrote:

Seems a good solution to use E bins, we should perhaps exclude the smallest bin in populations with less than 20 in that group

That sounds good to me! I'm assuming that also includes combining the Sub-Saharan Africa group, since even with the E bins all of its groups have less than 20 members.

With that done, the only group with less than 20 members will be Wikidata's [10, 30) edit bucket. Since it's a whole 0.0002% of the population, I think we can safely pretend it doesn't exist :)

If there's no objection to that, I'm unblocked.

Also, thanks for commenting on Phabricator!

@Neil_P._Quinn_WMF Great! Thanks for confirming you are unblocked :)