Violin (Box Plot-Density Trace) Graphical Information
A violin chart comprises a combination of box plot and density trace*
* Hintze J.L. and Nelson, R. D. (1998). The American Statistician, Vol. 52, No. 2, pp. 181-184.
The Effect of Kernel Bandwidth on the Density Trace Smoothing
The density trace is estimated by a Gaussian Kernel smoother using different options for computing the kernel bandwidth (KBW). Note that KBW parameter has a large effect on the smoothness of the density traces.
Comparing the Effect of KBW on the Density Trace Smoothing Based on the Silverman's Approach Using IQR