CD4                     CD4 cell counts
FPCscoreLSE             Least square estimates of functional principal
                        component scores
GenDataKL               Generate functional/longitudinal data via KL
                        expansion
GetGCVbw1D              Bandwidth selection through GCV for
                        one-dimension cases
GetGCVbw2D              Bandwidth selection through GCV for
                        two-dimension cases
KFPCA                   Kendall Functional Principal Component Analysis
                        (KFPCA) for sparse design
KFPCA_reg               Kendall Functional Principal Component Analysis
                        (KFPCA) for dense and regular design
MeanEst                 Local linear estimates of mean function
SparsePlot              Sparse plot
kernfun                 Kernel Functions
predict.KFPCA           Predict FPC scores
