fpca
(Package: fpca) :
The fpca package: summary information
The package implements the restricted maximum likelihood estimation through a Newton-Raphson procedure described in Peng and Paul (2009) to estimate functional principal components from (sparsely and irregularly observed) longitudinal data.
fpca.mle
(Package: fpca) :
Restricted MLE of Functional Principal Components
A function to obtain restricted MLE of functional principal components by Newton-Raphson algorithm for (sparsely and irregularly observed) longitudinal data (Peng and Paul, 2009). Subjects with only one measurement will be automatically excluded by 'fpca.mle'. Acknowledgements: The code for EM (as initial estimate) is provided by Professor G. James in USC (with slight modifications).
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