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snvecR  

Calculate Earth’s Obliquity and Precession in the Past
View on CRAN: Click here


Download and install snvecR package within the R console
Install from CRAN:
install.packages("snvecR")

Install from Github:
library("remotes")
install_github("cran/snvecR")

Install by package version:
library("remotes")
install_version("snvecR", "3.10.1")



Attach the package and use:
library("snvecR")
Maintained by
Ilja Kocken
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2023-05-19
Latest Update: 2025-03-06
Description:
Easily calculate precession and obliquity from an orbital solution (defaults to ZB18a from Zeebe and Lourens (2019) ) 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) , with further details on the methodology described in Zeebe (2022) . The name of the C-routine is snvec, which refers to the key units of computation: spin vector s and orbit normal vector n.
How to cite:
Ilja Kocken (2023). snvecR: Calculate Earth’s Obliquity and Precession in the Past. R package version 3.10.1, https://cran.r-project.org/web/packages/snvecR. Accessed 18 Sep. 2026.
Previous versions and publish date:
(2026-07-09 07:05), 3.7.5 (2023-05-19 19:40), 3.7.6 (2023-05-31 13:00), 3.7.7 (2023-06-09 06:00), 3.8.0 (2024-01-26 18:40), 3.9.0 (2024-03-01 15:00), 3.9.1 (2024-03-04 18:00), 3.9.3 (2024-04-24 16:10), 3.9.4 (2024-05-30 01:50), 3.10.0 (2025-03-01 06:20), 3.10.1 (2025-03-06 13:10)
Other packages that cited snvecR R package
View snvecR citation profile
Other R packages that snvecR depends, imports, suggests or enhances
Complete documentation for snvecR
Functions, R codes and Examples using the snvecR R package
Some associated functions: PT_ZB18a . ZB17 . ZB18a-100 . ZB18a-300 . ZB20 . get_solution . prepare_solution . snvec . snvecR-package . tidyeval . 
Some associated R codes: data.R . euler.R . get_solution.R . globals.R . interpolation.R . prepare_solution.R . snvec.R . snvecR-package.R . unwrap.R . utils-tidy-eval.R .  Full snvecR package functions and examples
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