poolDates: Combine radiocarbon ages from the same event.

In ahb108/rcarbon: Calibration and Analysis of Radiocarbon Dates

Combine radiocarbon ages from the same event.

Description

Computes a combined weighted mean and error and carries out a statistical test for internal consistency.

Usage

poolDates(x, errors, id = NULL, F14C = TRUE)

Arguments

x	A vector of uncalibrated radiocarbon ages
errors	A vector of standard deviations corresponding to each estimated radiocarbon age
id	A vector of event/object identifiers to be matched with radiocarbon ages. If not supplied all radiocarbon ages are assumed to be from the same event/object.
F14C	Whether calculations are carried out in F14C space or not. Default is TRUE.

Details

The function calculates combined weighted error mean and standard error for each set of radiocarbon ages associated with the same event or object and computes a significance test for evaluating internal consistency following Ward and Wilson's method (1978). This is equivalent to OxCal's R_Combine routine.

Value

A data.frame containing the weighted radiocarbon ages and errors for each event and the associated T-values and P-values.

References

Ward, G. K., & Wilson, S. R. (1978). Procedures for Comparing and Combining Radiocarbon Age Determinations: A Critique. Archaeometry, 20(1), 19–31. https://doi.org/10.1111/j.1475-4754.1978.tb00208.x

Examples

x = c(4300,4330,5600,5603,5620)
errors = c(20,30,30,30,45)
id = c(1,1,2,2,2)
poolDates(x,errors,id)

ahb108/rcarbon documentation built on Aug. 29, 2023, 9:21 a.m.