We provide a set of functions to retrieve information about GIMMS NDVI3g files currently available online; download and re-arrange the bi-monthly datasets according to creation time; import downloaded files from native binary (ENVI) format directly into R based on the widely applied 'raster' package; extract accompanying quality flags and perform quality control; calculate monthly value composites (e.g. maximum value composites, MVC) from the bi-monthly input data; and derive long-term monotonous trends from the Mann-Kendall trend test, optionally featuring pre-whitening to account for lag-1 autocorrelation.
| Version: | 0.5.1 |
| Depends: | raster, methods |
| Imports: | parallel, doParallel, foreach, Kendall, zyp |
| Published: | 2016-01-27 |
| Author: | Florian Detsch [cre, aut] |
| Maintainer: | Florian Detsch <admin at environmentalinformatics-marburg.de> |
| License: | GPL (≥ 3) | file LICENSE |
| NeedsCompilation: | no |
| Materials: | README NEWS |
| CRAN checks: | gimms results |
| Reference manual: | gimms.pdf |
| Package source: | gimms_0.5.1.tar.gz |
| Windows binaries: | r-devel: gimms_0.5.1.zip, r-release: gimms_0.5.1.zip, r-oldrel: gimms_0.5.1.zip |
| OS X Mavericks binaries: | r-release: gimms_0.5.1.tgz, r-oldrel: gimms_0.5.1.tgz |
| Old sources: | gimms archive |
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