matplotlib violin plot
Violin plot - Wikipedia
https://en.wikipedia.org/wiki/Violin_plot
バイオリン図 - Wikipedia
https://ja.wikipedia.org/wiki/バイオリン図
Official Documents
matplotlib.axes.Axes.violinplot
https://matplotlib.org/api/_as_gen/matplotlib.axes.Axes.violinplot.html
Example
MetPy Mondays
`#123 - Violin Plots of Soil Temperature Data : Unidata Developer's Blog
https://www.unidata.ucar.edu/blogs/developer/entry/metpy-mondays-123-violin-plots