Hi all. I am using CairoMakie.jl to plot a figure for longitudinal theophylline concentration data in 12 subjects simultaneously. The code I am using is
Theoph = dataset("datasets", "Theoph")
f = Figure()
Axis(f[1,1])
CairoMakie.lines!(Theoph.Time, Theoph.Conc)
CairoMakie.scatter!(Theoph.Time, Theoph.Conc)
f
The result looks like this.
I need to group or color the lines per subject to avoid connecting all lines together! Any ideas?!
I can be more specific if you tell me more about the format of Theoph, but I would recommend adding the AlgebraOfGraphics package to make plotting datasets easier. Something like:
using AlgebraOfGraphics, CairoMakie
draw(data(Theoph) * mapping(:Time, :Conc, color=:Subject) * visual(ScatterLines))
Second the advice to use AlgebraOfGraphics. It saves you exactly from the annoyance of writing out the grouping logic for these kinds of plots over and over again.
Thanks a lot for the suggestion. I will try it out. Does this mean that CairoMakie.jl itself does not have a means to handle this?
Makie is more low level, grouping a dataframe and automatically creating a legend is currently outside of its scope. But you can create more flexible solutions than with a framework like AlgebraOfGraphics. And you can simply combine both, AlgebraOfGraphics creates normal Makie plots that you can modify further.
Looks like it would be nice for AOG to have sorting on categorical axis labels
Yeah the dataset Subject column levels were messed up. When I reassign levels I get the correct order.
Yea, for the sorting bit I think there is sorter:
labels = df.Subject|> unique
mapping(:Time, :Conc; color=:Subject => sorter(labels))
so you can specify whatever order you want