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