rice (version 1.2.0)

BCADtob2k: calculate b2k from BC/AD ages

Description

calculate b2k from BC/AD ages

Usage

BCADtob2k(x, zero = TRUE)

Value

The b2k age(s).

Arguments

x

The BCAD age(s) to be translated into b2k age(s). BC ages are negative, AD ages are positive.

zero

Whether or not zero BC/AD should be included. Defaults to zero=TRUE.

Details

Turn BC/AD (or BCE/CE) ages into b2k ages. b2k ages are used frequently in the ice core community. Negative ages indicate BC, positive ages AD. Since the Gregorian and Julian calendars do not include 0 BC/AD (i.e., 31 December of 1 BC is followed by 1 January of AD 1), zero can be omitted. The years then go from -1 (i.e., 1 BC) to 1 AD. Other calendars, such as the astronomical one, do include zero. The often-used BCE/CE ages are equivalent to BC/AD.

Examples

 BCADtob2k(2025)
 BCADtob2k(-1, zero=TRUE)
 BCADtob2k(-1, zero=FALSE)