pMC.age | R Documentation |
Calculate C14 ages from pMC values of radiocarbon dates.
pMC.age(mn, sdev = c(), ratio = 100, decimals = 0, lambda = 8033)
mn |
Reported mean of the pMC. |
sdev |
Reported error of the pMC. |
ratio |
Most modern-date values are reported against |
decimals |
Amount of decimals required for the radiocarbon age. |
lambda |
The mean-life of radiocarbon (based on Libby half-life of 5568 years) |
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 age.pMC.
Radiocarbon ages from pMC values. If pMC values are above 100%, the resulting radiocarbon ages will be negative.
pMC.age(110, 0.5) # a postbomb date, so with a negative 14C age
pMC.age(80, 0.5) # prebomb dates can also be calculated
pMC.age(.8, 0.005, ratio=1) # throws a warning, use F14C.age instead
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