ggspectra 0.2.2

The changes from version 0.2.1 are:

  • Track changes in package ‘photobiology’ 0.9.15, 0.9.16 and 0.9.17. This among other improvements makes it easy to plot spectral absorptance.
  • Expand y scale to expected range in all cases, but do not force these limits in any case when data exceeds them, except for absorbance for which the y scale is not expanded past 6 a.u.
  • Add new annotation "boundaries" to highlight with horizontal line(s) the expected range of the plotted quantity, highlighting the limit(s) exceeded if data fall outside the expected/valid range.
  • Add previously missing ggplot() method for class object_spct.
  • Revise vignettes.
  • Documentation web site at

The updated package is available from CRAN.

Please raise issues concerning bugs or enhancements to this package through Bitbucket at

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