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This package was removed from CRAN on 2022-11-07. Its history is shown below.
Reason: recurring issues were not corrected in time. and policy violation, sending HTML
Details below reflect version 0.4.4, its last release before removal.

chromatographR

0.4.4

Chromatographic Data Analysis Toolset

0packages depend
downloads / year
test coverage
checks pass

Overview

About
Maintained by Ethan Bass3 releasesCRAN page ↗

Tools for high-throughput analysis of HPLC-DAD/UV chromatograms (or similar data). Includes functions for preprocessing, alignment, peak-finding and fitting, peak-table construction, data-visualization, etc. Preprocessing and peak-table construction follow the rough formula laid out in alsace (Wehrens, R., Bloemberg, T.G., and Eilers P.H.C., 2015. doi:10.1093/bioinformatics/btv299. Alignment of chromatograms is available using parametric time warping (ptw) (Wehrens, R., Bloemberg, T.G., and Eilers P.H.C. 2015. doi:10.1093/bioinformatics/btv299) or variable penalty dynamic time warping (VPdtw) (Clifford, D., & Stone, G. 2012. doi:10.18637/jss.v047.i08). Peak-finding uses the algorithm by Tom O'Haver http://terpconnect.umd.edu/~toh/spectrum/PeakFindingandMeasurement.htm. Peaks are then fitted to a gaussian or exponential-gaussian hybrid peak shape using non-linear least squares (Lan, K. & Jorgenson, J. W. 2001. doi:10.1016/S0021-9673(01)00594-5). See the vignette for more details and suggested workflow.

Install

Health

CRAN checks

CRAN check results are not tracked yet.

Code health
Yes
Tests · ratio 0.66
not tracked
Coverage
100%
Documentation · exports
15
Dependencies · direct

Documentation

Documentation
READMEYes · 285 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo
Examples that run
88%
Documented parameters
100%
Return-value docs
95%
References docs
26%

Downloads

Daily download trend is not available in this view yet.
Also on123 r2u39 autocran46 c2d4u

Dependencies

Declared dependencies
14 external dependencies (excludes base and recommended)
Depends (1)
R >= 3.5.0
Imports (15)
chromConverterdynamicTreeCutfastclustergraphicsgrDeviceslatticemethodsminpack.lmparallelptwpvclustscalessmootherstatsutils
LinkingTo (0)
none
Enhances (0)
none
Reverse dependencies
0direct
indirect (not tracked)

Nothing depends on this yet.

Code & Tests

Code Composition
R 2,743 (57%)Rd 1,638 (34%)Vignettes 208 (4%)Other 193 (4%)
Code characteristics
Object systems
S37S4 class1
Cyclomatic complexity
7.0 median / 28 max
Test cases
24 / 0.66 per code line

Test coverage

Line coverage

Expression

Tests / Examples

Functions

35 19 exported

Complexity

8 avg / 28 max

Call network

35 nodes / 27 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

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Lowest coverage

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

People & History

People (1)
Maintainer (1)
Author, Maintainer
Authors (1)
Author, Maintainer
Package Timeline

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

  • R
    R 4.3.0 released · 2023-04-21
  • archivedRemoved from CRAN
    2022-11-07
    recurring issues were not corrected in time and policy violation, sending HTML
  • 0.4.4
    2022-08-24 · diff ↗
  • 0.4.3
    2022-08-22 · diff ↗
  • 0.4.1
    2022-05-19
  • R
    R 4.2.0 released · 2022-04-22

Package metadata

Total releases
3
License
GPL (>= 2) OSI
Minimum R
≥ 3.5.0
Bundled data
2.2 MB / 4 files
Download size
not tracked yet
Installed size
not tracked yet
With dependencies
not tracked yet
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