spDates

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.