Called by various functions to calculate Pearson or angular correlation matrices.
cor2(x, y = NULL, circ = FALSE)A correlation matrix is returned.
a matrix.
an optional second matrix.
If TRUE, the observations are assumed to be angular (in radians), and circular correlation is used. If FALSE, Pearson product moment correlations is returned.
An auxilliary function to ease the maintenance.
Jammalamadaka, S. Rao and SenGupta, A. (2001). Topics in Circular Statistics, Section 8.2, World Scientific Press, Singapore.