GPH_estimate            Classical and Robust Geweke and Porter-Hudak
                        (GPH) estimators for the long-memory parameter
                        d of a long-range dependent stationary
                        processes
PerQn                   Robust periodogram based on the Robust ACF
PerioMrob               Robust M-periodogram
corMatQn                Robust correlation matrix
corQn                   Robust correlation between the variables 'x'
                        and 'y'
covMatQn                Robust covariance matrix
covQn                   Robust covariance between the variables 'x' and
                        'y'
plot.robacf             Plot Robust Autocovariance and Robust
                        Autocorrelation Functions
pm10                    PM10 Concentrations at Monitoring Stations
robacf                  Robust autocorrelation or autocovariance
                        function estimation
tsqn                    Applications of the Qn estimator to time series
                        (univariate and multivariate)
