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) ; 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mixtures as a means to determine the activity of a site (and as an alternative to the Oxcal function SUM; currently unpublished), and reverse calibration of dates from calibrated into un-calibrated years (also unpublished).


Bchron 4.3

Added some new functions:

  • dateInfluence, which works out how influential a single date is in a core
  • coreInfluence, which tries to estimate the total uncertainty reduction/increase between two Bchronology runs
  • choosePositions, which suggest new positions/depths to date to maximally reduce uncertainty

Reference manual

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4.7.6 by Andrew Parnell, 6 months ago

Report a bug at

Browse source code at

Authors: Andrew Parnell [cre, aut] , Nathan McJames [ctb] , Bruna Wundervald [ctb] , Keefe Murphy [ctb] , Mateus Maia [ctb] , Amin Shoari Nejad [ctb] , Yong Chen Goh [ctb]

Documentation:   PDF Manual  

Task views: Chemometrics and Computational Physics

GPL (>= 2) license

Imports utils, MASS, coda, mclust, ggplot2, ggridges, magrittr, purrr, ggforce, dplyr, scales, stringr, checkmate

Suggests knitr, testthat, rmarkdown, covr

Imported by ArchaeoChron, deltar.

See at CRAN