era: Year-Based Time Scales (original) (raw)
Provides a consistent representation of year-based time scales as a numeric vector with an associated 'era'. There are built-in era definitions for many year numbering systems used in contemporary and historic calendars (e.g. Common Era, Islamic 'Hijri' years); year-based time scales used in archaeology, astronomy, geology, and other palaeosciences (e.g. Before Present, SI-prefixed 'annus'); and support for arbitrary user-defined eras. Years can converted from any one era to another using a generalised transformation function. Methods are also provided for robust casting and coercion between years and other numeric types, type-stable arithmetic with years, and pretty-printing in tables.
| Version: | 0.5.0 |
|---|---|
| Depends: | R (≥ 2.10) |
| Imports: | vctrs (≥ 0.3.0), methods, rlang, pillar |
| Suggests: | tibble, testthat, covr, knitr, rmarkdown, dplyr, spelling, purrr, tidyr, lubridate |
| Published: | 2024-11-20 |
| DOI: | 10.32614/CRAN.package.era |
| Author: | Joe Roe  [aut, cre] |
| Maintainer: | Joe Roe |
| BugReports: | https://github.com/joeroe/era/issues |
| License: | MIT + file |
| URL: | https://era.joeroe.io, https://github.com/joeroe/era |
| NeedsCompilation: | no |
| Language: | en-GB |
| Materials: | README NEWS |
| In views: | TimeSeries |
| CRAN checks: | era results |
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