• aka Starburst Plot, Bivariate Box Plot
• It is a generalization of box plot for two or three dimensional statistical dataset
• It allows to visualize the location, spread, skewness and outliers of a data setup

The bagplot consists of three nested polygons, called the "bag", the "fence", and the "loop".

• The inner polygon, called the bag, is constructed on the basis of Tukey depth. It contains at most 50% of the data points
• The outermost of the three polygons, called the fence is not drawn as part of the bagplot, but is used to construct it. It is formed by inflating the bag by a certain factor (usually 3). Observations outside the fence are flagged as outliers.
• The observations that are not marked as outliers are surrounded by a loop, the convex hull of the observations within the fence.

• https://github.com/taoualiw/Data-Science-Basics/blob/master/Data-Visualization/04-16-2019-bag-plot-wt.ipynb

• https://en.wikipedia.org/wiki/Bagplot
• Pennacchi, Paolo & Vania, A & Bachschmid, N. (2006). Bivariate analysis of complex vibration data: An application to condition monitoring of rotating machinery. Mechanical Systems and Signal Processing - MECH SYST SIGNAL PROCESS. 20. 2340-2374. 10.1016/j.ymssp.2005.05.008.