Chronological Ordering for Fossils and Environmental Events
Overview
While individual calibrated radiocarbon dates can span several centuries, combining multiple dates together with any chronological constraints can make a chronology much more robust and precise. This package uses Bayesian methods to enforce the chronological ordering of radiocarbon and other dates, for example for trees with multiple radiocarbon dates spaced at exactly known intervals (e.g., 10 annual rings). For methods see Christen 2003 doi:10.11141/ia.13.2. Another example is sites where the relative chronological position of the dates is taken into account - the ages of dates further down a site must be older than those of dates further up (Buck, Kenworthy, Litton and Smith 1991 doi:10.1017/S0003598X00080534; Nicholls and Jones 2001 doi:10.1111/1467-9876.00250). The paper accompanying this R package is Blaauw et al. 2024 doi:10.1017/RDC.2024.56.
- further corrections regarding a bug in the Vignette.
From NEWS.md in the release
Install
Health
- OK13 OK2026-08-05
- NOTE12 OK, 1 NOTE2026-08-01
- OK14 OK2026-03-10
Documentation
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- 80%4 run in a plain check · 1 never run
- Exported functions with examples
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- Documented parameters
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- Help pages citing references
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- 100%
- Median days to close, 50 most recently updated closed issues
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- Median days to close, 50 most recently updated closed PRs
- 1
Stars over time
PRs over time
3 development-tooling and community-health practices detected across 2 families in the upstream repository
Checks run against github.com/maarten14c/coffee on 2026-10-21.
Dependencies
Installing coffee adds 22 packages (10 with compiled code, 27 MB of source tarballs). Heaviest: ggplot2 6.0 MB, data.table 5.7 MB, rice 2.8 MB.
Code & Tests
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- RR 4.6.0 released · 2026-04-24
- RR 4.5.0 released · 2025-04-11
- 0.4.3Latest
- 0.4.1
- 0.4.0
- RR 4.4.0 released · 2024-04-24
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- 0.2.0
- RR 4.3.0 released · 2023-04-21
- RR 4.2.0 released · 2022-04-22
- 0.1.12021-08-21
- RR 4.1.0 released · 2021-05-18
Package metadata
- First published
- 2021-08-21
- Total releases
- 6 / 5 yrs
- License
- GPL (>= 2) OSI
- Download size
- 854 KB
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