Range of calibrated radiocarbon dates

Functions for calculating the minimum and maximum ages of a cal vector. The range is determined by the probability distribution, with the extent controlled by the min_pdens parameter.

Usage

cal_age_range(x, min_pdens = NULL)

cal_age_min(x, min_pdens = NULL)

cal_age_max(x, min_pdens = NULL)

Arguments

x

A cal vector of calendar probability distributions.

min_pdens

Controls the minimum probability density threshold used to determine boundaries. The default is pdens > 0 within a plausible range around the calibrated date. Set min_pdens to a value between 0 and 1 to futher constrain the range or set min_pdens = 0 to find the absolute boundaries on the full range of the calibration curve.

Value

A data frame with two columns giving the minimum (min) and maximum (max) ages.

See also

Other functions for summarising calibrated radiocarbon dates: cal_hdr(), cal_mode(), cal_probability()

Examples

x <- c14_calibrate(c(10000, 9000, 8000), rep(10, 3))

cal_age_min(x)
#> # cal BP years <yr[3]>:
#> [1] 11245  9910  8605
#> # Era: Before Present (cal BP): Gregorian years (365.2425 days), counted backwards from 1950
cal_age_max(x)
#> # cal BP years <yr[3]>:
#> [1] 11805 10245  9080
#> # Era: Before Present (cal BP): Gregorian years (365.2425 days), counted backwards from 1950
cal_age_range(x)
#>     min   max
#> 1 11245 11805
#> 2  9910 10245
#> 3  8605  9080