ggspectra 0.3.8

R Package Update
ggspectra pkg

Pedro J. Aphalo



Eighteen months from the previous release, this update brings many improvements to autoplot() methods. These include enhanced capabilities for handling of normalized and scaled spectral data, as well as cosmetic tweaks to labels.

This update also includes smaller enhancements and fixes a bug. It tracks changes in packages ‘ggrepel’ (>= 0.9.1), ‘photobiology’ (>= 0.10.10) and ‘ggplot2’ (>= 3.3.3) and deprecation of functions in ‘tidyr’ (>= 1.0.0). The updated code depends on the revised normalize() function in ‘photobiology’ (>= 0.10.10) and on ‘ggrepel’ (>= 0.9.1).

The changes from version 0.3.7, the current CRAN release, are:

Package documentation web site at:

NOTE: The updated package is on its way to CRAN.

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