Smoothing of Two-Dimensional Demographic Data, Optionally Taking into Account Period and Cohort Effects

The implemented method uses for smoothing bivariate thin plate splines, bivariate lasso-type regularization, and allows for both period and cohort effects. Thus the mortality rates are modelled as the sum of four components: a smooth bivariate function of age and time, smooth one-dimensional cohort effects, smooth one-dimensional period effects and random errors.


Reference manual

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0.3 by Alexander Dokumentov, a year ago

Browse source code at

Authors: Alexander Dokumentov , Rob J Hyndman

Documentation:   PDF Manual  

GPL (>= 2) license

Imports quantreg, SparseM, compiler, lmtest, stats, rgl, colorspace, methods

Suggests testthat, demography

See at CRAN