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.
Versions across snapshots
| Version | Repository | File | Size |
|---|---|---|---|
0.5.0 |
rolling source/ R- | era_0.5.0.tar.gz |
49.2 KiB |
0.5.0 |
latest source/ R- | era_0.5.0.tar.gz |
49.2 KiB |
0.5.0 |
2026-04-23 source/ R- | era_0.5.0.tar.gz |
49.2 KiB |
0.5.0 |
2026-04-09 windows/windows R-4.5 | era_0.5.0.zip |
123.3 KiB |