Found the following apparent S3 methods exported but not registered:
  getA.fPFOLIOSPEC getA.fPORTFOLIO getAlpha.fPFOLIOSPEC
  getAlpha.fPFOLIOVAL getAlpha.fPORTFOLIO getConstraints.fPORTFOLIO
  getControl.fPFOLIOSPEC getControl.fPORTFOLIO getCov.fPFOLIODATA
  getCov.fPORTFOLIO getCovRiskBudgets.fPFOLIOVAL
  getCovRiskBudgets.fPORTFOLIO getData.fPFOLIODATA getData.fPORTFOLIO
  getEstimator.fPFOLIODATA getEstimator.fPFOLIOSPEC
  getEstimator.fPORTFOLIO getMean.fPFOLIODATA getMean.fPORTFOLIO
  getMessages.fPFOLIOBACKTEST getMessages.fPFOLIOSPEC
  getModel.fPFOLIOSPEC getModel.fPORTFOLIO getMu.fPFOLIODATA
  getMu.fPORTFOLIO getNAssets.fPFOLIODATA getNAssets.fPORTFOLIO
  getNFrontierPoints.fPFOLIOSPEC getNFrontierPoints.fPFOLIOVAL
  getNFrontierPoints.fPORTFOLIO getObjective.fPFOLIOSPEC
  getObjective.fPORTFOLIO getOptim.fPFOLIOSPEC getOptim.fPORTFOLIO
  getOptimize.fPFOLIOSPEC getOptimize.fPORTFOLIO getOptions.fPFOLIOSPEC
  getOptions.fPORTFOLIO getParams.fPFOLIOSPEC getParams.fPORTFOLIO
  getPortfolio.fPFOLIOSPEC getPortfolio.fPFOLIOVAL
  getPortfolio.fPORTFOLIO getRiskFreeRate.fPFOLIOSPEC
  getRiskFreeRate.fPFOLIOVAL getRiskFreeRate.fPORTFOLIO
  getSeries.fPFOLIODATA getSeries.fPORTFOLIO getSigma.fPFOLIODATA
  getSigma.fPORTFOLIO getSmoother.fPFOLIOBACKTEST
  getSmootherDoubleSmoothing.fPFOLIOBACKTEST
  getSmootherFun.fPFOLIOBACKTEST
  getSmootherInitialWeights.fPFOLIOBACKTEST
  getSmootherLambda.fPFOLIOBACKTEST getSmootherParams.fPFOLIOBACKTEST
  getSmootherSkip.fPFOLIOBACKTEST getSolver.fPFOLIOSPEC
  getSolver.fPORTFOLIO getSpec.fPORTFOLIO getStatistics.fPFOLIODATA
  getStatistics.fPORTFOLIO getStatus.fPFOLIOSPEC getStatus.fPFOLIOVAL
  getStatus.fPORTFOLIO getStrategy.fPFOLIOBACKTEST
  getStrategyFun.fPFOLIOBACKTEST getStrategyParams.fPFOLIOBACKTEST
  getTailRisk.fPFOLIODATA getTailRisk.fPFOLIOSPEC
  getTailRisk.fPORTFOLIO getTailRiskBudgets.fPORTFOLIO
  getTargetReturn.fPFOLIOSPEC getTargetReturn.fPFOLIOVAL
  getTargetReturn.fPORTFOLIO getTargetRisk.fPFOLIOSPEC
  getTargetRisk.fPFOLIOVAL getTargetRisk.fPORTFOLIO
  getTrace.fPFOLIOSPEC getTrace.fPORTFOLIO getType.fPFOLIOSPEC
  getType.fPORTFOLIO getUnits.fPFOLIODATA getUnits.fPORTFOLIO
  getWeights.fPFOLIOSPEC getWeights.fPFOLIOVAL getWeights.fPORTFOLIO
  getWindows.fPFOLIOBACKTEST getWindowsFun.fPFOLIOBACKTEST
  getWindowsHorizon.fPFOLIOBACKTEST getWindowsParams.fPFOLIOBACKTEST
  plot.fPORTFOLIO print.solver summary.fPORTFOLIO
See section ‘Registering S3 methods’ in the ‘Writing R Extensions’
manual.