Changelog

Source: NEWS.md

PlotFTIR (development version)

• add_wavenumber_marker() and add_band() now respect label_aesthetics = list(vjust = ...) so peak labels can be vertically offset to reduce overlap (@pbulsink, #38).

• fit_peaks() now documents explicit fitting controls and clarifies that automatic peak discovery is a heuristic starting point for fitting, not a validated deconvolution standard (#33).

• Peak fitting functionality added with find_ftir_peaks(), fit_peaks(), and related functions. (#33)

• Added Raman spectral plotting with plot_raman(), read_raman(), and utilities for baseline correction, smoothing, and peak finding (#34).

• smooth_spectra(), baseline_correct(), normalize_raman(), and find_peak_maxima() accept sample_ids = NULL to select every sample (#34).

• smooth_spectra() and baseline_correct() now report a clear error when given FTIR absorbance or transmittance data instead of Raman spectra (#34).

• normalize_raman() now rejects spectra with a non-positive maximum and reports NA intensity values rather than silently propagating them (#34).

• read_raman() captures single-# header metadata, reports true file line numbers for invalid data, and warns about malformed rows (#34).

PlotFTIR 1.3.1

CRAN release: 2026-09-17

• Updated package data sets to properly print after v1.3.0.
• Added bilingual error codes and bilingual pretty printing (#40)
• read_ftir_jdx() now auto-converts .jdx files with wavelength (micrometer) x-axis units to wavenumber (#43)

PlotFTIR 1.3.0

CRAN release: 2026-07-21

• print() now provides pretty printing for PlotFTIR data structures, showing spectral range, resolution, intensity type, number of samples, and sample IDs. (#27)
• Updated to use ggplot2::coord_transform() instead of coord_trans, which is now deprecated. (#25)
• Resolved issue with data exchange with ir package. (#35)

PlotFTIR 1.2.1

CRAN release: 2025-08-25

• Updates (mostly to testing) to comply with pending ggplot2 4.0.0 release (#23)

PlotFTIR 1.2.0

CRAN release: 2025-03-31

• Patch update to expose check_ftir_data for downstream packages. (related to #19)
• Add import capability for .jdx filetype using readJDX. (#20)

PlotFTIR 1.1.0

CRAN release: 2025-02-05

• Added ability to set default language in options(). (#10)
• Added ability to highlight one or more samples in spectra. (#15)
• Added ability to add a background shaded band (like a wide marker) to indicate a given range. (#16)
• Added attributes to imported data to simplify internal calculation of thingslike y axis units. (#17)

PlotFTIR 1.0.0

CRAN release: 2024-11-13

• Initial Release & CRAN Submission.