spDates: Analysis of Spatial Gradients in Radiocarbon Dates

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. Distances can be either great-circle or least-cost paths calculated from a friction surface. 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.

Version: 1.0
Depends: R (≥ 3.5.0), rcarbon
Imports: data.table, dplyr, gdistance, ggplot2, parallel, raster, smatr, viridisLite, magrittr, rlang, sp, gstat
Published: 2020-10-08
Author: Jonas Gregorio de Souza ORCID iD [aut, cre]
Maintainer: Jonas Gregorio de Souza <jonas.gregorio at gmail.com>
License: MIT + file LICENSE
NeedsCompilation: no
Materials: README
CRAN checks: spDates results

Downloads:

Reference manual: spDates.pdf
Package source: spDates_1.0.tar.gz
Windows binaries: r-devel: spDates_1.0.zip, r-release: spDates_1.0.zip, r-oldrel: spDates_1.0.zip
macOS binaries: r-release: spDates_1.0.tgz, r-oldrel: spDates_1.0.tgz

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