Predicts the occurrence times (in day-of-year) of spring phenological events. Three methods, including the accumulated degree days (ADD) method, the accumulated days transferred to a standardized temperature (ADTS) method, and the accumulated developmental progress (ADP) method, were used. See Shi et al. (2017a) <doi:10.1016/j.agrformet.2017.04.001> and Shi et al. (2017b) <doi:10.1093/aesa/sax063> for details.
| Version: | 1.1.5 |
| Depends: | R (≥ 4.2.0) |
| Published: | 2025-06-20 |
| DOI: | 10.32614/CRAN.package.spphpr |
| Author: | Peijian Shi [aut, cre], Zhenghong Chen [aut], Jing Tan [aut], Brady K. Quinn [aut] |
| Maintainer: | Peijian Shi <pjshi at njfu.edu.cn> |
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| NeedsCompilation: | no |
| CRAN checks: | spphpr results |
| Reference manual: | spphpr.html , spphpr.pdf |
| Package source: | spphpr_1.1.5.tar.gz |
| Windows binaries: | r-devel: spphpr_1.1.5.zip, r-release: spphpr_1.1.5.zip, r-oldrel: spphpr_1.1.5.zip |
| macOS binaries: | r-release (arm64): spphpr_1.1.5.tgz, r-oldrel (arm64): spphpr_1.1.5.tgz, r-release (x86_64): spphpr_1.1.5.tgz, r-oldrel (x86_64): spphpr_1.1.5.tgz |
| Old sources: | spphpr archive |
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