| 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 |