snvecR: Calculate Earth’s Obliquity and Precession in the Past
Easily calculate precession and obliquity from an orbital solution (defaults to ZB18a from Zeebe and Lourens (2019) <doi:10.1126/science.aax0612>) and assumed or reconstructed values for tidal dissipation (Td) and dynamical ellipticity (Ed). This is a translation and adaptation of the 'C'-code in the supplementary material to Zeebe and Lourens (2022) <doi:10.1029/2021PA004349>, with further details on the methodology described in Zeebe (2022) <doi:10.3847/1538-3881/ac80f8>. The name of the 'C'-routine is 'snvec', which refers to the key units of computation: spin vector s and orbit normal vector n.
| Version: | 3.10.1 |
| Depends: | R (≥ 3.6.0) |
| Imports: | deSolve,cli (≥ 3.4.0), stats,dplyr,tibble,purrr,readr,tidyselect,rlang (≥ 0.4.11),glue, tools,backports (≥1.1.6),stringr |
| Suggests: | astrochron,ggplot2,tidyr,testthat,roxygen2,knitr,withr,curl,rmarkdown |
| Published: | 2025-03-06 |
| DOI: | 10.32614/CRAN.package.snvecR |
| Author: | Ilja Kocken [aut, cre, trl, cph], Richard Zeebe [aut] |
| Maintainer: | Ilja Kocken <ikocken at hawaii.edu> |
| BugReports: | https://github.com/japhir/snvecR/issues |
| License: | GPL (≥ 3) |
| URL: | https://japhir.github.io/snvecR/,https://github.com/japhir/snvecR |
| NeedsCompilation: | no |
| Citation: | snvecR citation info |
| Materials: | README,NEWS |
| CRAN checks: | snvecR results |
Documentation:
| Reference manual: | snvecR.html ,snvecR.pdf |
| Vignettes: | Analyze a grid of Td and Ed values (source,R code) Compare R and C implementations (source,R code) |
Downloads:
| Package source: | snvecR_3.10.1.tar.gz |
| Windows binaries: | r-devel:snvecR_3.10.1.zip, r-release:snvecR_3.10.1.zip, r-oldrel:snvecR_3.10.1.zip |
| macOS binaries: | r-release (arm64):snvecR_3.10.1.tgz, r-oldrel (arm64):snvecR_3.10.1.tgz, r-release (x86_64):snvecR_3.10.1.tgz, r-oldrel (x86_64):snvecR_3.10.1.tgz |
| Old sources: | snvecR archive |
Linking:
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