Disabling grouping along x-axis in grouped boxplot

Specific Domains Visualization
1

Using the group keyword argument in Statsplots.boxplot adjusts the distance between individual boxes so that they cluster with their groups (see example below):

using StatsPlots

x = Vector{String}(undef, 40)

for i = 1:40
    if i % 4 == 0
        x[i] = "E"
    elseif i % 4 == 1
        x[i] = "A"
    elseif i % 4 == 2
        x[i] = "B"
    elseif i % 4 == 3
        x[i] = "C"
    end
end    

is_vowel(x) = x == "A" || x == "E" ? "vowel" : "consonant" 

boxplot(x, rand(40), group=is_vowel.(x))

demo_boxplots

Any idea how to disable this behaviour? In my use-case I have three boxes, but want to colour each according to one of two groups - 2 in one, 1 in the other. This asymmetry in distance between boxes makes the plot look really ugly.

2

Maybe you could submit an issue in StatsPlots.jl to see if an additional argument could be added to the groupedboxplot recipe, where the spacing is defined here.