logiciels:scoop

Context

The scoop (Sparse cooperative regression) R package fits coop-Lasso, group-Lasso and Lasso solution paths for linear regression and logistic regression. The cooperative-Lasso (in short coop-Lasso) may be viewed as a modification of the group-Lasso penalty that promotes sign coherence and that allows zeros within groups.

To install, run R CMD INSTALL scoop_0.x-x.tar.gz in a terminal (tested on Linux ubuntu and Mac OS 10.6 Snowleopard).

R code to reproduce some Figures of the manuscript

Basal tumor

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

library(scoop)
demo(basal_tumor)

Breiman experiments

Launch the following script to produce Figure 5 of the paper (see below). Needs scoop package installed.

script_breiman.R