bpDir - Boxplots for Directional Data

Functions for drawing boxplots for data on (the boundary of) a unit circle (i.e., circular and axial data), from Buttarazzi D., Pandolfo G., Porzio G.C. (2018) <doi:10.1111/biom.12889>. The package allows producing also circular violin plots, and includes methods to calculate robust measures of dispersion for circular data.