I have this code to plot a time-series:
using AlgebraOfGraphics
data(
(; x=1:100, y=randn(100))
) * mapping(:x, :y) * visual(Lines) |> draw
It produces this plot:
Question: how to add more ticks to x and/or y axis without constructing them manually? For example, I’d like to have 10 ticks on the x axis, not 3.
I can’t just use axis = (xticks = LinearTicks(10),) because in the actual plot I’m working on the x axis actually contains dates, so the ticks are autogenerated by AlgebraOfGraphics.
I ran into this same issue too (`LinearTicks` seems to alter the formatting for timeseries data · Issue #232 · MakieOrg/AlgebraOfGraphics.jl · GitHub).
I think there is work being done upstream (https://github.com/JuliaPlots/Makie.jl/pull/1347) so that we can handle time axes directly with Makie, but in the meantime @piever added this convenience function in AoG that I think is really handy:
julia> using AlgebraOfGraphics, GLMakie, Dates
julia> t = DateTime(2021, 1, 1):Month(1):DateTime(2022, 1, 1);
julia> y = randn(length(t));
julia> df = (; t, y);
julia> ticks = AlgebraOfGraphics.datetimeticks(monthname, df.t[begin:2:end]);
julia> plt = data(df) * mapping(:t, :y) * visual(Lines);
julia> draw(plt; axis=(; xticks=ticks))
You can pass any formatting function you want, although you will still need to play with the array of time points that is actually passed to it
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