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Bchron (version 4.7.3)

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

Description

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) ; Relative sea level rate estimation incorporating time uncertainty in polynomial regression models (Parnell and Gehrels 2015) ; 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mixtures as a means to determine the activity of a site (and as an alternative to the Oxcal function SUM; currently unpublished), and reverse calibration of dates from calibrated into un-calibrated years (also unpublished).

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Version

Install

install.packages('Bchron')

Monthly Downloads

822

Version

4.7.3

License

GPL (>= 2)

Maintainer

Andrew Parnell

Last Published

November 21st, 2020

Functions in Bchron (4.7.3)

BchronCalibrate

Fast radiocarbon calibration
TestRSLData

Relative sea level data
createCalCurve

Create a new calibration curve
marine13

Marine 2013 calibration curve
TestChronData

Example chronology file for use with the BchronRSL function.
BchronDensityFast

Non-parametric phase model (faster version)
BchronDensity

Non-parametric phase model
Bchronology

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

Plot output from BchronRSL
marine20

Marine 2020 calibration curve
normal

Data for dummy calibration of normally distributed ages
intcal20

Northern hemisphere 2020 calibration curve
plot.BchronologyRun

Plot output from Bchronology
hdr

Calculate highest density regions for Bchron calibrated ages
summary.BchronCalibratedDates

Summarise a BchronCalibrate object
choosePositions

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

Plot output from BchronDensity
plot.BchronDensityRunFast

Plot run from BchronDensityFast
summary.BchronDensityRun

Summarise a Bchron density object
dateInfluence

Find the influence of the dates in a Bchronology run
coreInfluence

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

Summarise a BchronRSL run
summary.BchronologyRun

Summarise a Bchronology object
intcal13

Northern hemisphere 2013 calibration curve
%>%

Pipe operator
unCalibrate

Uncalibrate a Radiocarbon date
plot.BchronCalibratedDates

Plot calibrated dates from a BchronCalibrate run
shcal13

Southern hemisphere 2013 calibration curve
predict.BchronologyRun

Predict ages of other positions for a BchronologyRun object
shcal20

Southern hemisphere 2020 calibration curve
sampleAges

Get sample ages from a set of Bchron calibrated dates
Sluggan

Sluggan Moss data
Bchron

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

Relative sea level rate (RSL) estimation
Glendalough

Glendalough data