qcrlscR

0.1.3

Quality Control–based Robust LOESS Signal Correction

0packages depend

2.2Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Wanchang LinFirst published 2025-04-221 releasesCRAN page ↗GitHub ↗

An R implementation of quality control–based robust LOESS(local polynomial regression fitting) signal correction for metabolomics data analysis, described in Dunn, W., Broadhurst, D., Begley, P. et al. (2011) doi:10.1038/nprot.2011.335. The optimisation of LOESS's span parameter using generalized cross-validation (GCV) is provided as an option. In addition to signal correction, 'qcrlscR' includes some utility functions like batch shifting and data filtering.

Install

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

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

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

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("wanchanglin/qcrlscR")

Development version from wanchanglin/qcrlscR. Installs pak first if it is not already available.

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-qcrlscr

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-qcrlscR

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-qcrlscR

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

Health

CRAN checks

13OK

Slowest check: 45 s · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 109 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 33%

Downloads

2.2K

CRAN downloads in the past year

Rank #20,857 · ~6/day · ~187/mo

Releases R versions

Daily download trend is not available in this view yet.

14030 days

58190 days

2.2K1 year

Compare downloads with other packages →

Also on129 r2u46 autocran

Repository

GitHub ↗ wanchanglin/qcrlscr

1Stars

0Forks

0Open issues

0Open PRs

1Releases

19Commits

1Contributors

19 commits · Last activity 2025-07-17 · 0% stars, 30d

Stars over time

2025-07-15 · 12026-07-07 · 1

Repository practices

Upstream repositoryBeta

Checks run against github.com/wanchanglin/qcrlscr on 2026-07-19.

No development-tooling practices detected in the upstream repository.

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.0.0

Imports (0)

none

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 536 (56%)Rd 422 (44%)

Code characteristics

Cyclomatic complexity: 3.0 median / 6 max

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

8 7 exported

Complexity

3.1 avg / 6 max

Call network

8 nodes / 5 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 (2)

Maintainer (1)

Wanchang Lin

Author, Maintainer

Authors (2)

Wanchang Lin

Author, Maintainer

Warwick Dunn

Author

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.1.3Latest
2026-03-10 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-04-22
Total releases: 1 / 1 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.0.0
Bundled data: 1.9 MB / 1 file
Download size: 2.5 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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