sandia.gov/techlib/access-control.cgi/2008/086212.pdf"> Formulas for Robust, One-Pass Parallel Computation of Covariances and Arbitrary-Order Statistical Moments, 2008, Technical Report SAND2008-6212, Sandia National Laboratories. It computes the covariance for a pair of variables. Use {@link StorelessCovariance} to estimate an entire covariance matrix.
Note: This class is package private as it is only used internally in the {@link StorelessCovariance} class.
@since 3.0