calibration_curve: Create a calibration curve
In paleolimbot/carbon14: Tidy Radiocarbon Dating Tools

Create a calibration curve

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calibration_curve(.data = NULL, cal_age, measured_age,
  measured_age_error = 0, name = NULL, cal_age_type = c("Calibrated BP",
  "Year AD"), measured_age_type = NULL)

`.data`	An optional data frame
`cal_age`	The age in calibrated years BP (before 1950)
`measured_age`	The measured age (usually 14C years measurements)
`measured_age_error`	Error on the measured age, plus or minus
`name`	a name for the calibration curve
`cal_age_type`	The type of the calibrated age (must be "Calibrated BP" or "Year AD"). See in_year_ad or in_cal_bp to switch an existing calibration curve from one unit to the other.
`measured_age_type`	The type of measured age (usually 'Radiocarbon Years BP')