spectralR: Obtain and Visualize Spectral Reflectance Data for Earth Surface
Polygons
Tools for obtaining, processing, and visualizing spectral reflectance data for the user-defined land or water surface classes for visual exploring in which wavelength the classes differ. Input should be a shapefile with polygons of surface classes (it might be different habitat types, crops, vegetation, etc.). The Sentinel-2 L2A satellite mission optical bands pixel data are obtained through the Google Earth Engine service (<https://earthengine.google.com/>) and used as a source of spectral data.
| Version: | 0.1.4 | 
| Depends: | R (≥ 4.1.0) | 
| Imports: | rgee (≥ 1.1.3), geojsonio (≥ 0.9.4), sf (≥ 1.0-7), dplyr (≥ 1.0.9), ggplot2 (≥ 3.3.5), reshape2 (≥ 1.4.0), rlang (≥
1.0.0), tibble (≥ 3.1.0), tidyr (≥ 1.2.0) | 
| Suggests: | covr, tinytest (≥ 1.3.0) | 
| Published: | 2025-10-14 | 
| DOI: | 10.32614/CRAN.package.spectralR | 
| Author: | Oleh Prylutskyi [aut, cre],
  Dariia Shyriaieva [ctb],
  Vladimir Mikryukov [ctb] | 
| Maintainer: | Oleh Prylutskyi  <oleh.prylutskyi at gmail.com> | 
| BugReports: | https://github.com/olehprylutskyi/spectralR/issues | 
| License: | GPL-3 | 
| URL: | https://github.com/olehprylutskyi/spectralR/ | 
| NeedsCompilation: | no | 
| Materials: | README, NEWS | 
| In views: | Agriculture | 
| CRAN checks: | spectralR results | 
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