var, cov, and cor compute the variance of x and the covariance or
correlation of x and y if these are vectors. If x and y are matrices then
the covariances (or correlations) between the columns of x and the columns
of y are computed.
These functions mask and wrap the stats::var, stats::cov, and
stats::cor functions to add support for vecvec objects. More details
can be found in the documentation for those functions.
var(x, ...)
cov(x, ...)
cor(x, ...)a numeric vector, matrix or data frame.
Additional arguments passed to stats::var, stats::cov, and
stats::cor.