Converts calendar dates to 14C dates
Randomly samples a 14C date from the calibration curve error ribbon, at the corresponding calendar date
uncalibrateCalendarDates(dates, calcurve)
dates |
A vector of calendar dates. |
calcurve |
A calibration curve object. Choose from intcal20 (default), shcal20, intcal13 or shcal13. |
Conceptually this can be thought of as the reverse process of calibrating a 14C date into calendar time, however 'uncalibrating' is a misnomer as the full calibrated PD is not used. Instead, it uses a vector of calendar point estimates, and randomly samples 14C dates from the calibration curve error ribbon, at the corresponding calendar dates. Therefore values will differ each time.
Returns a vector of 14C dates
uncalibrateCalendarDates(c(4500,5000), shcal20) # note the date outside the calcurve range has a 1 to 1 mapping between cal and c14 time uncalibrateCalendarDates(c(4500,70000), intcal20) # however, a soft fade is performed between the end of the calcurve and 60000 uncalibrateCalendarDates(c(4500,58000), intcal20)
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