Package: snvecR 3.10.1.9000

Ilja Kocken

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 dynamical ellipticity (Ed) and tidal dissipation (Td). 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.

Authors:Ilja Kocken [aut, cre, trl, cph], Richard Zeebe [aut]

snvecR_3.10.1.9000.tar.gz
snvecR_3.10.1.9000.zip(r-4.5)snvecR_3.10.1.9000.zip(r-4.4)snvecR_3.10.1.9000.zip(r-4.3)
snvecR_3.10.1.9000.tgz(r-4.5-any)snvecR_3.10.1.9000.tgz(r-4.4-any)snvecR_3.10.1.9000.tgz(r-4.3-any)
snvecR_3.10.1.9000.tar.gz(r-4.5-noble)snvecR_3.10.1.9000.tar.gz(r-4.4-noble)
snvecR_3.10.1.9000.tgz(r-4.4-emscripten)snvecR_3.10.1.9000.tgz(r-4.3-emscripten)
snvecR.pdf |snvecR.html✨
snvecR/json (API)
NEWS

# Install 'snvecR' in R:
install.packages('snvecR', repos = c('https://japhir.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/japhir/snvecr/issues

Pkgdown site:https://japhir.github.io

On CRAN:

Conda:

5.51 score 4 stars 4 scripts 714 downloads 3 exports 32 dependencies

Last updated 14 days agofrom:51d3102a05. Checks:1 OK, 8 NOTE. Indexed: yes.

TargetResultLatest binary
Doc / VignettesOKMar 10 2025
R-4.5-winNOTEMar 10 2025
R-4.5-macNOTEMar 10 2025
R-4.5-linuxNOTEMar 10 2025
R-4.4-winNOTEMar 10 2025
R-4.4-macNOTEMar 10 2025
R-4.4-linuxNOTEMar 10 2025
R-4.3-winNOTEMar 10 2025
R-4.3-macNOTEMar 10 2025

Exports:get_solutionprepare_solutionsnvec

Dependencies:backportsbitbit64clicliprcpp11crayondeSolvedplyrfansigenericsgluehmslifecyclemagrittrpillarpkgconfigprettyunitsprogresspurrrR6readrrlangstringistringrtibbletidyselecttzdbutf8vctrsvroomwithr

Analyze a grid of Td and Ed values

Rendered fromanalyze_grid_td-ed.Rmdusingknitr::rmarkdownon Mar 10 2025.

Last update: 2024-04-23
Started: 2023-04-12

Compare R and C implementations

Rendered fromcompare_with_c.Rmdusingknitr::rmarkdownon Mar 10 2025.

Last update: 2025-03-05
Started: 2025-03-05

Readme and manuals

Help Manual

Help pageTopics
Full Astronomical Solution ZB18afull-ZB18a full_ZB18a
Get an Astronomical Solutionget_solution
Prepare Astronomical Solutionprepare_solution
Astronomical Solutions PT-ZB18a(Ed,Td)"PT-ZB18a(1,0)" "PT-ZB18a(1,1)" PT-ZB18a PT_ZB18a
Calculate Earth’s Obliquity and Precession in the Pastsnvec
Astronomical Solutions ZB17ZB17 ZB17a ZB17b ZB17c ZB17d ZB17e ZB17f ZB17h ZB17i ZB17j ZB17k ZB17p
Astronomical Solution ZB18a"ZB18a-100" ZB18a_100
Astronomical Solution ZB18a"ZB18a-300" ZB18a ZB18a_300
Astronomical Solutions ZB20ZB20 ZB20a ZB20b ZB20c ZB20d
Astronomical Solutions ZB23.RxxZB23 ZB23.R01 ZB23.R02 ZB23.R03 ZB23.R04 ZB23.R05 ZB23.R06 ZB23.R07 ZB23.R08 ZB23.R09 ZB23.R10 ZB23.R11 ZB23.R12 ZB23.R13 ZB23.R14 ZB23.R15 ZB23.R16 ZB23.R17 ZB23.R18 ZB23.R19 ZB23.R20 ZB23.R21 ZB23.R22 ZB23.R23 ZB23.R24 ZB23.R25 ZB23.R26 ZB23.R27 ZB23.R28 ZB23.R29 ZB23.R30 ZB23.R31 ZB23.R32 ZB23.R33 ZB23.R34 ZB23.R35 ZB23.R36 ZB23.R37 ZB23.R38 ZB23.R39 ZB23.R40 ZB23.R41 ZB23.R42 ZB23.R43 ZB23.R44 ZB23.R45 ZB23.R46 ZB23.R47 ZB23.R48 ZB23.R49 ZB23.R50 ZB23.R51 ZB23.R52 ZB23.R53 ZB23.R54 ZB23.R55 ZB23.R56 ZB23.R57 ZB23.R58 ZB23.R59 ZB23.R60 ZB23.R62 ZB23.R63 ZB23.R64 ZB23.Rxx