calBP.14C {IntCal}

Find the 14C age and error belonging to a cal BP age.

Description

Given a calendar age, the calibration curve (default cc=1) is interpolated and the corresponding 14C age and error are returned.

Usage

calBP.14C(yr, cc = 1, postbomb = FALSE, rule = 1, ccdir = NULL)

Arguments

yr

The cal BP year.

cc

calibration curve for C14 (see caldist()).

postbomb

Whether or not to use a postbomb curve (see caldist()).

rule

How should R's approx function deal with extrapolation. If rule=1, the default, then NAs are returned for such points and if it is 2, the value at the closest data extreme is used.

ccdir

Directory of the calibration curves. Defaults to where the package's files are stored (system.file), but can be set to, e.g., ccdir="curves".

Details

Interpolation is used, and values outside the calibration curve are given as NA. For negative cal BP ages, a postbomb curve will have to be provided.

Author(s)

Maarten Blaauw

Examples

calBP.14C(100)