====== Quadrupen software home page ======

===== Context =====

This package fits classical sparse regression models with efficient active set algorithms by solving quadratic problems. Also provides a few methods for model selection purpose.

===== Download =====

[[http://cran.r-project.org/web/packages/quadrupen/|stable version on CRAN now.]]

Also check the [[https://r-forge.r-project.org/projects/quadrupen/|R-forge dev page]] for the [[https://r-forge.r-project.org/R/?group_id=1631|latest release of the package]]


You will need 'Matrix', 'RcppArmadillo' and 'ggplot2' packages installed with their dependencies.

===== Some R examples =====

==== Simple Elastic-net demo ====

Just launch the demo script linked to the package: in ''R'',

<code>
library(quadrupen)
demo(quad_enet)
</code>