spphpr: Spring Phenological Prediction

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

Documentation:

Reference manual:

spphpr.html , spphpr.pdf

Downloads:

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

Linking:

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