Testing for correlation between two directional or orientational variates. Assumes “large” number of observations. Requires two columns of directional (0-360) or orientational (0-180) data in degrees.
This module uses the circular correlation procedure and parametric significance test of Jammalamadaka & Sengupta (2001).
Reference
Jammalamadaka, S.R. & A. Sengupta. 2001. Topics in circular statistics. World Scientific.