era: Year-Based Time Scales
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: |
0.4.0 |
| Depends: |
R (≥ 2.10) |
| Imports: |
vctrs (≥ 0.3.0), methods, rlang, pillar |
| Suggests: |
tibble, testthat, covr, knitr, rmarkdown, dplyr, spelling, purrr, tidyr, lubridate |
| Published: |
2022-03-09 |
| Author: |
Joe Roe  [aut,
cre] |
| Maintainer: |
Joe Roe <joe at joeroe.io> |
| BugReports: |
https://github.com/joeroe/era/issues |
| License: |
MIT + file LICENSE |
| URL: |
https://era.joeroe.io, https://github.com/joeroe/era |
| NeedsCompilation: |
no |
| Language: |
en-GB |
| Materials: |
README NEWS |
| CRAN checks: |
era results |
Documentation:
Downloads:
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