tsa >> Time Series Analysis Univariate (stationary) analysis acovf acorf biacovf bispec durlev lattice rmle pacf parcor invest0 invest1 selmo selmo2 histo histo2 histo3 hup ucp y2res ar_spa detrend flix Multivariate stationary analysis mvar mvfilter mvfreqz arfit2 histo4 Adaptive (time-varying) analysis aar aarmam adim amarma mvaar Conversions between forms ac2poly ac2rc ar2rc rc2ar poly2ac poly2ar poly2rc rc2ac rc2poly ar2poly Utility functions arcext sinvest1 sbispec flag_implicit_samplerate Test suites tsademo bisdemo invfdemo