Violin Charts

Violin (Box Plot-Density Trace) Graphical Information

  • A violin chart comprises a combination of box plot and density trace*
  • Violin (Box Plot-Density Trace) Graphical Information

* 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

Violin With Kernel Bandwidth= h x 0.25

Violin With Kernel Bandwidth= h x 1.1

Violin With Kernel Bandwidth= h x 0.65