smoothedLasso

1.6

A Framework to Smooth L1 Penalized Regression Operators using Nesterov Smoothing

0packages depend

2.6Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Georg HahnFirst published 2020-04-037 releasesCRAN page ↗

We provide full functionality to smooth L1 penalized regression operators and to compute regression estimates thereof. For this, the objective function of a user-specified regression operator is first smoothed using Nesterov smoothing (see Y. Nesterov (2005) doi:10.1007/s10107-004-0552-5), resulting in a modified objective function with explicit gradients everywhere. The smoothed objective function and its gradient are minimized via BFGS, and the obtained minimizer is returned. Using Nesterov smoothing, the smoothed objective function can be made arbitrarily close to the original (unsmoothed) one. In particular, the Nesterov approach has the advantage that it comes with explicit accuracy bounds, both on the L1/L2 difference of the unsmoothed to the smoothed objective functions as well as on their respective minimizers (see G. Hahn, S.M. Lutz, N. Laha, C. Lange (2020) doi:10.1101/2020.09.17.301788). A progressive smoothing approach is provided which iteratively smoothes the objective function, resulting in more stable regression estimates. A function to perform cross validation for selection of the regularization parameter is provided.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("smoothedLasso", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-smoothedlasso

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-smoothedLasso

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-smoothedLasso

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 1.7 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 100%

Downloads

2.6K

CRAN downloads in the past year

Rank #17,598 · ~7/day · ~217/mo

Releases R versions

Daily download trend is not available in this view yet.

17430 days

66590 days

2.6K1 year

Compare downloads with other packages →

Also on94 r2u8 autocran

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (0)

none

Imports (2)

RdpackMatrix

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 558 (53%)Rd 486 (47%)

Code characteristics

Cyclomatic complexity: 1.0 median / 3 max

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

20 12 exported

Complexity

1.3 avg / 3 max

Call network

20 nodes / 11 edges

Call graph

Open call graph →

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (4)

Georg Hahn

no longer listed · 1.0 to 1.6

Nilanjana Laha

no longer listed · 1.0 to 1.6

Christoph Lange

no longer listed · 1.0 to 1.6

Sharon M. Lutz

no longer listed · 1.0 to 1.6

Package Timeline

7 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.6Latest
2021-03-21 · current release · diff ↗
1.5
2020-10-08 · diff ↗
1.4
2020-09-22 · diff ↗
1.3
2020-06-14 · diff ↗
1.2
2020-06-02 · diff ↗
1.1
2020-05-31 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.0
2020-04-03
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2020-04-03
Total releases: 7 / 6 yrs
License: GPL (>= 2) OSI
Download size: 8.1 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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