cgam: Constrained Generalized Additive Model

A constrained generalized additive model is fitted by the cgam routine. Given a set of predictors with or without shape or order restrictions, the maximum likelihood estimator for the constrained generalized additive model is found using an iteratively re-weighted cone projection algorithm. The cone information criterion (CIC) may be used to select the best combination of variables and shapes. One extension of this package is isotonic regression in two dimensions using warped-plane splines without using additivity assumptions, which is implemented by the wps routine.

Version: 1.5
Depends: coneproj (≥ 1.3), R (≥ 3.0.2)
Suggests: stats, MASS, graphics, grDevices, utils
Published: 2016-06-05
Author: Mary C. Meyer and Xiyue Liao
Maintainer: Xiyue Liao <xiyue at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
CRAN checks: cgam results


Reference manual: cgam.pdf
Package source: cgam_1.5.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Mavericks binaries: r-release: cgam_1.5.tgz, r-oldrel: cgam_1.5.tgz
Old sources: cgam archive


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