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Chromatograms

Bioc current

Infrastructure for Chromatographic Mass Spectrometry Data

v1.2.0 · Package record · software · Artistic-2.0

Release Lineage

Entered 3.22 · Oct 30, 2025

Current · Requires R 4.6

1.0 In 2 of 49 releases 3.23

Description

The Chromatograms packages defines an efficient infrastructure for storing and handling of chromatographic mass spectrometry data. It provides different implementations of *backends* to store and represent the data. Such backends can be optimized for small memory footprint or fast data access/processing. A lazy evaluation queue and chunk-wise processing capabilities ensure efficient analysis of also very large data sets.

Advisories

None published for Bioconductor

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

54 13 exported

Complexity

4 avg / 16 max

Call network

54 nodes / 25 edges

Test coverage is not measured for Bioconductor packages; nodes fall back to a neutral fill.

Loading call graph…

Lowest coverage

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

Code

Structure

Lines of code

16,063

Files

63

Compiled share

0%

Has compiled src

No

Language breakdown

R 5,613 (34.9%)Tests 5,372 (33.4%)Docs 2,654 (16.5%)Vignettes 2,424 (15.1%)

API

Exported functions

13

Internal functions

41

Recent export changes

v3.23+3 chromSpectraIndex, concatenateChromatograms, matchRtime
v3.22+10 ChromBackendMemory, ChromBackendMzR, ChromBackendSpectra +7 more

Testing

Has tests

Yes

Test-to-code ratio

1.28

testthat edition

–

Docs

Roxygen coverage

100%

Health & Security signals

Informational signals; not verdicts.

on.exit coverage

0%

Unsafe pattern score

0

Dep constraint coverage

28.6%

Secret pattern count

0

Bundled 3rd-party code

2 items

Portability & License

Min R version

4.5.0

System requirements

–

C++ standard

–

License

Artistic-2.0

License flags

SPDX valid, OSI approved

History

Versions

2

First release

2025-10-29

Latest release

2026-04-28

Avg cadence

181 days

Cold removal rate

–

Dep drift

1

LOC over versions

v3.22: 10,919 LOCv3.23: 16,063 LOC

Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/bioc-code-metrics.

Documentation

In the Bioconductor 3.23 release
READMEYes · 249 wordsVignettesYes · 2 · dynamicNEWS· In the Bioconductor git repository, left out of the releaseCitation fileNo
Help pages
11 (1 internal)
Examples that run
100%11 run in a plain check
Exported functions with examples
100%
Documented parameters
84%
Return-value docs
100%
Help pages citing references
0%

Repository practices

Upstream repositoryBeta

7 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/rformassspectrometry/chromatograms on 2026-10-21.

Continuous integration (2)
GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (3)
pkgdown

GitHub Pages site last deployed 2026-10-16 · The repository has a site deploy workflow

Coverage (1)
Coverage reporting
Lint, format, editor (1)
EditorConfig
How this is detected·Detection ruleset v4 (2026-10-20)

Topics

Maintainer
Philippine Louail

Available on

CRANr2uBioconductorautoCRANCOPR

Depended on by (1)

Bioconductor (1)

People

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("Chromatograms")
Louail, P., Gatto, L., & Rainer, J. (2026). Chromatograms: Infrastructure for Chromatographic Mass Spectrometry Data (Version 1.2.0) [Computer software]. https://bioconductor.org/packages/Chromatograms

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for Chromatograms version 1.2.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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