Radiocarbon ages from pMC values. If pMC values are above 100%, the resulting radiocarbon ages will be negative.
Arguments
mn
Reported mean of the pMC.
sdev
Reported error of the pMC.
ratio
Most modern-date values are reported against 100. If it is against 1 instead, use 1 here.
decimals
Amount of decimals required for the radiocarbon age.
lambda
The mean-life of radiocarbon (based on Libby half-life of 5568 years)
Details
Post-bomb dates are often reported as pMC or percent modern carbon. Since Bacon expects radiocarbon ages,
this function can be used to calculate radiocarbon ages from pMC values. The reverse function is C14.pMC.
pMCtoC14(110, 0.5) # a postbomb date, so with a negative 14C age pMCtoC14(80, 0.5) # prebomb dates can also be calculated pMCtoC14(.8, 0.005, ratio=1) # throws a warning, use F14C.age instead