Package: IsoplotR Title: Statistical Toolbox for Radiometric Geochronology Version: 7.0 Date: 2026-04-01 Authors@R: person("Pieter", "Vermeesch", , "p.vermeesch@ucl.ac.uk", role = c("aut", "cre")) Description: Plots U-Pb data on Wetherill and Tera-Wasserburg concordia diagrams. Calculates concordia and discordia ages. Performs linear regression of measurements with correlated errors using 'York', 'Titterington', 'Ludwig' and Omnivariant Generalised Least-Squares ('OGLS') approaches. Generates Kernel Density Estimates (KDEs) and Cumulative Age Distributions (CADs). Produces Multidimensional Scaling (MDS) configurations and Shepard plots of multi-sample detrital datasets using the Kolmogorov-Smirnov distance as a dissimilarity measure. Calculates 40Ar/39Ar ages, isochrons, and age spectra. Computes weighted means accounting for overdispersion. Calculates U-Th-He (single grain and central) ages, logratio plots and ternary diagrams. Processes fission track data using the external detector method and LA-ICP-MS, calculates central ages and plots fission track and other data on radial (a.k.a. 'Galbraith') plots. Constructs total Pb-U, Pb-Pb, Th-Pb, K-Ca, Re-Os, Sm-Nd, Lu-Hf, Rb-Sr and 230Th-U isochrons as well as 230Th-U evolution plots. Author: Pieter Vermeesch [aut, cre] Maintainer: Pieter Vermeesch Imports: MASS License: GPL-3 URL: https://github.com/pvermees/IsoplotR/, https://isoplotr.es.ucl.ac.uk/home/index.html LazyData: true RoxygenNote: 7.3.3 Encoding: UTF-8 Repository: https://pvermees.r-universe.dev Date/Publication: 2026-06-30 16:53:51 UTC RemoteUrl: https://github.com/pvermees/isoplotr RemoteRef: HEAD RemoteSha: cb46a9da090be87f3f8ce945396b1d0f49693541 NeedsCompilation: no Packaged: 2026-06-30 16:57:09 UTC; root