quadrupen: Sparsity by Worst-Case Quadratic Penalties

Fits classical sparse regression models with efficient active set algorithms by solving quadratic problems as described by Grandvalet, Chiquet and Ambroise (2017) <doi:10.48550/arXiv.1210.2077>. Also provides a few methods for model selection purpose (cross-validation, stability selection).

Version:	0.2-13
Depends:	Rcpp, ggplot2, Matrix
Imports:	reshape2, methods, scales, grid, parallel
LinkingTo:	Rcpp, RcppArmadillo
Suggests:	testthat, spelling, lars, elasticnet, glmnet
Published:	2025-10-09
DOI:	10.32614/CRAN.package.quadrupen
Author:	Julien Chiquet [aut, cre]
Maintainer:	Julien Chiquet <julien.chiquet at inrae.fr>
BugReports:	https://github.com/jchiquet/quadrupenCRAN/issues
License:	GPL (≥ 3)
URL:	https://github.com/jchiquet/quadrupenCRAN
NeedsCompilation:	yes
Language:	en-US
Citation:	quadrupen citation info
Materials:	README, NEWS
CRAN checks:	quadrupen results

Documentation:

Reference manual:

quadrupen.html , quadrupen.pdf

Downloads:

Package source:	quadrupen_0.2-13.tar.gz
Windows binaries:	r-devel: quadrupen_0.2-13.zip, r-release: quadrupen_0.2-13.zip, r-oldrel: quadrupen_0.2-13.zip
macOS binaries:	r-release (arm64): quadrupen_0.2-13.tgz, r-oldrel (arm64): quadrupen_0.2-13.tgz, r-release (x86_64): quadrupen_0.2-13.tgz, r-oldrel (x86_64): quadrupen_0.2-13.tgz
Old sources:	quadrupen archive

Linking:

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