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Bchron

Radiocarbon Dating, Age-Depth Modelling, Relative Sea Level Rate Estimation, and Non-Parametric Phase Modelling

Enables quick calibration of radiocarbon dates under various calibration curves (including user generated ones); age-depth modelling as per the algorithm of Haslett and Parnell (2008) <DOI:10.1111/j.1467-9876.2008.00623.x>; Relative sea level rate estimation incorporating time uncertainty in polynomial regression models (Parnell and Gehrels 2015) <DOI:10.1002/9781118452547.ch32>; non-parametric phase modelling via Gaussian mixtures as a means to determine the activity of a site (and as an alternative to the Oxcal function SUM; currently unpublished), and reverse calibration of dates from calibrated into un-calibrated years (also unpublished).

Functions (35)

Bchron

Bchron: Radiocarbon dating, age-depth modelling, relative sea level rate estimation, and non-parametric phase modelling

BchronCalibrate

Fast radiocarbon calibration

BchronDensity

Non-parametric phase model

BchronDensityFast

Non-parametric phase model (faster version)

BchronRSL

Relative sea level rate (RSL) estimation

Bchronology

Runs the Compound Poisson-Gamma chronology model of Haslett and Parnell (2008)

Glendalough

Glendalough data

Sluggan

Sluggan Moss data

TestChronData

Example chronology file for use with the BchronRSL function.

TestRSLData

Relative sea level data

choosePositions

Compute positions to date next which result in maximal decrease of chronological uncertainty

coreInfluence

Find the influence of dates in a pair of Bchronology runs across the core

createCalCurve

Create a new calibration curve

dateInfluence

Find the influence of the dates in a Bchronology run

hdr

Calculate highest density regions for Bchron calibrated ages

intcal13

Northern hemisphere 2013 calibration curve

intcal20

Northern hemisphere 2020 calibration curve

marine13

Marine 2013 calibration curve

marine20

Marine 2020 calibration curve

normal

Data for dummy calibration of normally distributed ages

pipe

Pipe operator

plot.BchronCalibratedDates

Plot calibrated dates from a BchronCalibrate run

plot.BchronDensityRun

Plot output from BchronDensity

plot.BchronDensityRunFast

Plot run from BchronDensityFast

plot.BchronRSLRun

Plot output from BchronRSL

plot.BchronologyRun

Plot output from Bchronology

predict.BchronologyRun

Predict ages of other positions for a BchronologyRun object

sampleAges

Get sample ages from a set of Bchron calibrated dates

shcal13

Southern hemisphere 2013 calibration curve

shcal20

Southern hemisphere 2020 calibration curve

summary.BchronCalibratedDates

Summarise a BchronCalibrate object

summary.BchronDensityRun

Summarise a Bchron density object

summary.BchronRSLRun

Summarise a BchronRSL run

summary.BchronologyRun

Summarise a Bchronology object

unCalibrate

Uncalibrate a Radiocarbon date

Bchron

Radiocarbon Dating, Age-Depth Modelling, Relative Sea Level Rate Estimation, and Non-Parametric Phase Modelling

v4.7.4
GPL (>= 2)
Authors
Andrew Parnell
Initial release
2021-01-28

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