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mixtures as a means to determine the activity of a site (and as an alternative to the Oxcal function SUM; currently unpublished), and reverse calibration of dates from calibrated into un-calibrated years (also unpublished).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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4.3.0 by Andrew Parnell, a year ago

Browse source code at

Authors: Andrew Parnell

Documentation:   PDF Manual  

Task views: Chemometrics and Computational Physics

GPL (>= 2) license

Imports utils, MASS, ellipse, coda, mclust

Suggests knitr

Imported by ArchaeoChron, deltar.

Suggested by Bclim, c14bazAAR.

See at CRAN