I am trying to plot a pie chart, unfortunately the only thing I could plot was the simplest version of it. I was unable to find any documentation and would love some help. I did find some examples using function keys like “explode” or “shadow” etc. but none of those work for any backend I tried (GR, PlotlyJS, PyPlot).
I would love to get something at least as good as pie charts from Excel, but I want to learn how to do it in Julia. Just knowing the keywords I can use would be of much help. Thanks.
It is hard to find in scientific software packages sophisticated design features for pie charts. They aren’t used much in this field. Do a Google search on “why you shouldn’t use pie charts”. This will tell you some reasons.
The good news is that for other charts scientific software packages often are more refined than Excel.
I am not sure if Plots.jl can do that. You could try using PyPlot.jl directly
using PyPlot
pie([15,15,30,60], explode=[0,0.3,0,0], labels=["A","B","C","D"], autopct="%1.1f%%", shadow=true, startangle=90)
Since PyPlots is based on the Python library Matplotlib, you can check the pie chart examples at https://matplotlib.org/3.1.1/gallery/index.html (translation from python to julia required, usually straightforward)
Thanks for your answers. I wouldn’t really do pie charts by myself but I wanted to help a friend. Ultimately, I switched to Python for this particular vizualization task.
However, is there any better way to understand Julia plots and its various styles? I often find myself lost because the documentation is very lacking and I can’t find the way to do what I want with it - and it’s hard to understand just from the examples…
using PyCall
using PyPlot
pygui(true)
pygui(:qt5)
labels = ("Frogs", "Hogs", "Dogs", "Logs")
sizes = [15, 30, 45, 10]
explode = (0, 0.1, 0, 0) # only "explode" the 2nd slice (i.e. "Hogs")
fig1, ax1 = plt.subplots()
ax1.pie(sizes, explode=explode, labels=labels, autopct="%1.1f%%",
shadow=true, startangle=90)
ax1.axis("equal") # Equal aspect ratio ensures that pie is drawn as a circle.
plt.show()
Better plotting documentation would be desirable, but… well, somebody has to write it.
In the meanwhile I use Plots.jl for basic staff, and PyPlot.jl for anything else, even though it could probably be handled by Plots.jl.
So what is the current state with Juno support? I am using Atom - is it possible to use ECarts with it? If yes - then how? I’ve tried to run an example - no visible output.
There is no “official” plotting package for Julia. There are various plotting packages targeting particular use cases, usually wrapping some backend written in another language, and detailed documentation is mostly available only for the latter. Then there is the umbrella package
which aims to provide a unified interface.
For scientific plots, especially for inclusion into papers, some people like
