Package: era
Type: Package
Title: Year-Based Time Scales
Version: 0.5.0.9000
Authors@R: person("Joe", "Roe", email = "joe@joeroe.io",
  role = c("aut", "cre"), comment = c(ORCID = "0000-0002-1011-1244"))
Description: 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.
Language: en-GB
License: MIT + file LICENSE
URL: https://era.joeroe.io, https://github.com/joeroe/era
BugReports: https://github.com/joeroe/era/issues
Encoding: UTF-8
Roxygen: list(markdown = TRUE)
RoxygenNote: 7.3.2
Depends: R (>= 2.10)
Imports: vctrs (>= 0.3.0), methods, rlang, pillar
Suggests: tibble, testthat, covr, knitr, rmarkdown, dplyr, spelling,
        purrr, tidyr, lubridate
VignetteBuilder: knitr
Config/testthat/edition: 3
Repository: https://joeroe.r-universe.dev
Date/Publication: 2026-01-14 10:30:01 UTC
RemoteUrl: https://github.com/joeroe/era
RemoteRef: HEAD
RemoteSha: f3014b45a8f12e991cf42102d1426379178dc21b
NeedsCompilation: no
Packaged: 2026-07-13 09:40:30 UTC; root
Author: Joe Roe [aut, cre] (ORCID: <https://orcid.org/0000-0002-1011-1244>)
Maintainer: Joe Roe <joe@joeroe.io>