cobs: Constrained B-Splines (Sparse Matrix Based)

Qualitatively Constrained (Regression) Smoothing Splines via Linear Programming and Sparse Matrices.

Version: 1.3-3
Depends: R (≥ 2.15.1)
Imports: SparseM (≥ 1.6), quantreg (≥ 4.65), grDevices, graphics, splines, stats, methods
Published: 2017-03-31
Author: Pin T. Ng and Martin Maechler
Maintainer: Martin Maechler <maechler at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
Citation: cobs citation info
Materials: README ChangeLog
CRAN checks: cobs results


Reference manual: cobs.pdf
Package source: cobs_1.3-3.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X El Capitan binaries: r-release: cobs_1.3-3.tgz
OS X Mavericks binaries: r-oldrel: cobs_1.3-3.tgz
Old sources: cobs archive

Reverse dependencies:

Reverse depends: logcondiscr, simest
Reverse imports: biospear, demography, joineRML
Reverse suggests: mev, schumaker


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