Raleigh plot

Raleigh plots, or Rayleigh plots (also called circlegrams and closely related to circular histograms, phasor diagrams, and wind roses), are statistical graphics that serve as graphical representations for a Raleigh test that map a mean vector to a circular plot. Raleigh plots have many applications in the field of chronobiology, such as in studying butterfly migration patterns or protein and gene expression, and in other fields such as geology, cognitive psychology, and physics.