CovCorMPer              Robust covariance or correlation matrix from
                        the MPer-ACF
CovCorPer               Covariance or correlation matrix from the
                        Per-ACF
CrossPeriodogram        Cross-periodogram
MCrossPeriodogram       Robust M-cross-periodogram
MPerACF                 Robust autocorrelation or autocovariance
                        function estimation from the robust
                        M-periodogram
MPerioReg               Robust M-periodogram
PerACF                  Autocorrelation or autocovariance function
                        estimation from the periodogram
PerioReg                Periodogram
plot.robacf             Plot Robust Autocovariance and Robust
                        Autocorrelation Functions
