Analysis of Spatial Gradients in Radiocarbon Dates R package spDates version 1.1 CRAN Task View: ChemPhys (https://CRAN.R-project.org/view=ChemPhys) Inspired by space-time regressions often performed to assess the expansion of the Neolithic from the Near East to Europe (Pinhasi et al. 2005 <doi:10.1371/journal.pbio.0030410>). Test for significant correlations between the (earliest) radiocarbon dates of archaeological sites and their respective distances from a hypothetical center of origin. Both ordinary least squares (OLS) and reduced major axis (RMA) methods are supported (Russell et al. 2014 <doi:10.1371/journal.pone.0087854>). It is also possible to iterate over many sites to identify the most likely origin. Software Depends: R (>= 3.5.0), rcarbon Imports: data.table, dplyr, ggplot2, parallel, raster, smatr, viridisLite, magrittr, rlang, sp, gstat Jonas Gregorio de Souza <jonas.gregorio@gmail.com> Comprehensive R Archive Network (CRAN) Jonas Gregorio de Souza [aut, cre] (ORCID: <https://orcid.org/0000-0001-6032-4443>) MIT + file LICENSE (https://CRAN.R-project.org/package=spDates/LICENSE) 2022-10-09 application/tgz https://CRAN.R-project.org/package=spDates doi:10.32614/CRAN.package.spDates