Found the following significant warnings:
  Rd warning: FittedPeriodicArmaModel-class.Rd:38: missing link ‘VirtualArmaFilter-class’
  Rd warning: FittedPeriodicArmaModel-class.Rd:40: missing link ‘InterceptSpec-class’
  Rd warning: FittedPeriodicArmaModel-class.Rd:42: missing link ‘VirtualMonicFilter-class’
  Rd warning: PartialPeriodicAutocorrelations-class.Rd:21: missing link ‘FlexibleLagged-class’
  Rd warning: PartialPeriodicAutocorrelations-class.Rd:23: missing link ‘Lagged-class’
  Rd warning: PeriodicArmaFilter-class.Rd:21: missing link ‘VirtualArmaFilter-class’
  Rd warning: PeriodicArmaFilter-class.Rd:22: missing link ‘VirtualMonicFilter-class’
  Rd warning: PeriodicAutocorrelations-class.Rd:21: missing link ‘FlexibleLagged-class’
  Rd warning: PeriodicAutocorrelations-class.Rd:23: missing link ‘Lagged-class’
  Rd warning: PeriodicAutocovariances-class.Rd:22: missing link ‘FlexibleLagged-class’
  Rd warning: PeriodicAutocovariances-class.Rd:24: missing link ‘Lagged-class’
  Rd warning: PeriodicBJFilter-class.Rd:22: missing link ‘VirtualBJFilter-class’
  Rd warning: PeriodicBJFilter-class.Rd:23: missing link ‘VirtualMonicFilterSpec-class’
  Rd warning: PeriodicBJFilter-class.Rd:24: missing link ‘VirtualMonicFilter-class’
  Rd warning: PeriodicMTS-class.Rd:51: missing link ‘optionalMatrix-class’
  Rd warning: PeriodicSPFilter-class.Rd:21: missing link ‘VirtualSPFilter-class’
  Rd warning: PeriodicSPFilter-class.Rd:22: missing link ‘VirtualMonicFilterSpec-class’
  Rd warning: PeriodicSPFilter-class.Rd:23: missing link ‘VirtualMonicFilter-class’
  Rd warning: SamplePeriodicAutocorrelations-class.Rd:23: missing link ‘Fitted-class’
  Rd warning: SamplePeriodicAutocorrelations-class.Rd:25: missing link ‘FlexibleLagged-class’
  Rd warning: SamplePeriodicAutocorrelations-class.Rd:27: missing link ‘Lagged-class’
  Rd warning: SamplePeriodicAutocovariances-class.Rd:24: missing link ‘Fitted-class’
  Rd warning: SamplePeriodicAutocovariances-class.Rd:26: missing link ‘FlexibleLagged-class’
  Rd warning: SamplePeriodicAutocovariances-class.Rd:28: missing link ‘Lagged-class’
  Rd warning: partialAutocorrelations-methods.Rd:30: missing link ‘partialAutocovariances’
  Rd warning: pcacfMat.Rd:34: missing link ‘slMatrix-class’
  Rd warning: pcacfMat.Rd:62: missing link ‘slMatrix-class’
  Rd warning: sim_parCoef.Rd:23: missing link ‘sim_pcfilter’
  Rd warning: sim_parCoef.Rd:23: missing link ‘sim_mc’
  Rd warning: sim_parCoef.Rd:36: missing link ‘sim_pcfilter’
See ‘/home/hornik/tmp/R.check/r-patched-gcc/Work/PKGS/pcts.Rcheck/00install.out’ for details.