lightr: Read Spectrometric Data and Metadata

Parse various reflectance/transmittance/absorbance spectra file formats to extract spectral data and metadata, as described in Gruson, White & Maia (2019) <doi:10.21105/joss.01857>. Among other formats, it can import files from 'Avantes' <https://www.avantes.com/>, 'CRAIC' <https://www.microspectra.com/>, and 'OceanOptics'/'OceanInsight' <https://www.oceanoptics.com/> brands.

Version: 1.9.0
Depends: R (≥ 4.0.0)
Imports: future.apply, progressr, xml2 (≥ 1.0.0)
Suggests: digest, future, knitr, lintr, pavo, rmarkdown, spelling, testthat (≥ 3.0.0), withr
Published: 2025-07-21
DOI: 10.32614/CRAN.package.lightr
Author: Hugo Gruson ORCID iD [cre, aut, cph], Rafael Maia ORCID iD [aut, cph], Thomas White ORCID iD [aut, cph], Kotya Karapetyan [ctb, cph] (Author of the MATLAB script to read AvaSoft7 binary files (CC-BY))
Maintainer: Hugo Gruson <hugo.gruson+R at normalesup.org>
BugReports: https://github.com/ropensci/lightr/issues
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
URL: https://docs.ropensci.org/lightr/, https://github.com/ropensci/lightr
NeedsCompilation: no
Language: en-GB
Citation: lightr citation info
Materials: README, NEWS
CRAN checks: lightr results

Documentation:

Reference manual: lightr.html , lightr.pdf
Vignettes: Batch import with 'lr_get_spec()' and 'lr_get_metadata()' (source, R code)
Design Principles for lightr (source, R code)
Renormalise spectral data with a custom reference (source, R code)
Real life example (source, R code)

Downloads:

Package source: lightr_1.9.0.tar.gz
Windows binaries: r-devel: lightr_1.9.0.zip, r-release: lightr_1.9.0.zip, r-oldrel: lightr_1.9.0.zip
macOS binaries: r-release (arm64): lightr_1.9.0.tgz, r-oldrel (arm64): lightr_1.9.0.tgz, r-release (x86_64): lightr_1.9.0.tgz, r-oldrel (x86_64): lightr_1.9.0.tgz
Old sources: lightr archive

Reverse dependencies:

Reverse imports: pavo

Linking:

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