Makie Bar Plots

[Mervyn_Larrier]

I feel as though I’m probably missing something obvious, but there don’t seem to be a lot of examples for bar plots in Makie that don’t point you back towards AoG. How can I get these bars to be properly dodged? Here is the code I wrote, and included is an example result. I just want one data set on the left and the other on the right. Nothing fancy. Any help is greatyly appreciated.

grades = df[:,1]
fig = CairoMakie.Figure()
ax1 = CairoMakie.Axis(fig[1,1], xticks = (1:7, grades), title = "Pore and Particle Size")

barplot!(ax1, 1:7,
particles,
dodge = [1,1,1,1,1,1,1], width = 0.5,
)

barplot!(ax1, 1:7,
pores,
dodge = [2,2,2,2,2,2,2], width = 0.5,
)

[technocrat]

using CairoMakie

grades    = ["ZXF-5Q", "ACF-10Q", "AXF-3Q", "AXF-5Q", "AXM-5Q", "AXZ-5Q", "TM"]
particles = [1.0, 4.9, 4.9, 4.9, 4.9, 4.9, 1.0]
pores     = [0.3, 0.8, 0.8, 0.8, 0.8, 0.7, 1.5]

fig = Figure()
ax1 = Axis(
    fig[1, 1],
    xticks = (1:7, grades),
    title = "Pore and Particle Size",
)

# 7 positions, 2 bars per position
x      = repeat(1:7, inner = 2)          # Int vector, length 14
y      = vcat(particles, pores)          # Float vector, length 14
dodge  = repeat([1, 2], 7)               # group ids, length 14
colors = repeat([:steelblue, :goldenrod], 7)

barplot!(ax1, x, y; dodge = dodge, color = colors, width = 0.8)

fig

will give you what you’re looking for.

A minimum working example would help elucidate how to get from the example to the proposed solution.

[jules]

You need to set ndodge if the dodge vectors don’t all contain the largest index, because that’s what’s used by default. Barplot 1 sees a dodge group with ndodge=1 which is no dodge. Barplot 2 sees 2 as the highest value so that one’s dodged correctly. AoG sets this stuff based on the categorical scale it determines globally.

[Mervyn_Larrier]

Thank you kindly.