photobiology 0.10.11 – Using R for Photobiology

This update adds flexibility to the user interface used to indicate the target when searching for wavelengths matching specific spectral data values. It also contains a preliminary implementation of classes solute_spct and collections solute_mspct for storing spectral molar or mass coefficients of attenuation.

Changes from version 0.10.10 the most recent CRAN release, are:

Add new classes of objects solute_spct and solute_mspct to be used to store molar (default) and mass based coefficients of attenuation describing overall attenuation, or attenuation by absorption or by scattering. Implement the corresponding methods. (Unstable: interface may change).
Add example data for two substances: water.spct and phenylalanine.spct.
Rewrite join_mspct() to use interpolation when wavelengths differ among member spectra. This should not break old code but output can slightly differ.
Expand syntax accepted for character arguments passed to parameter target in all wls_at_target() methods and function find_wls().
Fix failure to correctly handle spectra with zero rows, a bug affecting several methods, operators and functions including rbindspct() and find_wls().
Fix bug in rowwise_filter() affecting parallel summaries of absorptance.
Fix bugs in extraction and replacement functions for collections of spectra, possibly triggered by changes in R >= 4.0.0.
Add method s_mean_se_band_band().

The package documentation web site is at https://docs.r4photobiology.info/photobiology/ includes a changelog with information for each release since version 0.1.0.

NOTE: Version 0.10.11 has been submitted to CRAN.

Please raise issues concerning bugs or enhancements to this package through GitHub at https://github.com/aphalo/photobiology/issues

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