C14toF14C: Calculate F14C values from C14 ages
Description
Calculate F14C values from radiocarbon ages
Usage
C14toF14C(y, er = NULL, roundby = NA, lambda = 8033, botherrors = FALSE)
Value
F14C values from C14 ages.
Arguments
- y
Reported mean of the 14C age.
- er
Reported error of the 14C age. If left empty, will translate y to F14C.
- roundby
Amount of decimals required for the output. Defaults to roundby=NA
, no rounding.
- lambda
The mean-life of radiocarbon (based on Libby half-life of 5568 years).
- botherrors
Since going from C14 to F14C involves a logarithmic transformation (F=exp(-y/lambda)), errors that are symmetric on the C14 scale will become asymmetric on the F14C scale. By default, only the largest error is reported, but if botherrors=TRUE
, both errors are reported.
Details
Post-bomb dates are often reported as F14C or fraction modern carbon. Since software such as Bacon expects radiocarbon ages,
this function can be used to calculate F14C values from radiocarbon ages. The reverse function of F14C.age.