BaSkePro

Description

Tool to perform Bayesian inference of carcass processing/transport strategy and bone attrition from archaeofaunal skeletal profiles characterized by percentages of MAU (Minimum Anatomical Units). The approach is based on a generative model for skeletal profiles that replicates the two phases of formation of any faunal assemblage: initial accumulation as a function of human transport strategies and subsequent attrition.Two parameters define this model: 1) the transport preference (alpha), which can take any value between - 1 (mostly axial contribution) and 1 (mostly appendicular contribution) following strategies constructed as a function of butchering efficiency of different anatomical elements and the results of ethnographic studies, and 2) degree of attrition (beta), which can vary between 0 (no attrition) and 10 (maximum attrition) and relates the survivorship of bone elements to their maximum bone density. Starting from uniform prior probability distribution functions of alpha and beta, a Monte Carlo Markov Chain sampling based on a random walk Metropolis-Hasting algorithm is adopted to derive the posterior probability distribution functions, which are then available for interpretation. During this process, the likelihood of obtaining the observed percentages of MAU given a pair of parameter values is estimated by the inverse of the Chi2 statistic, multiplied by the proportion of elements within a 1 percent of the observed value. See Ana B. Marin-Arroyo, David Ocio (2018).<doi:10.1080/08912963.2017.1336620>.

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Maintainer: ‘Marco Vidal-Cordasco <marcovidalcordasco@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = c("Ana", "B."),
                      family = "Marín-Arroyo",
                      role = "aut"),
               person(given = "David",
                      family = "Ocio",
                      role = "aut"),
               person(given = "Marco",
                      family = "Vidal-Cordasco",
                      role = "cre",
                      email = "marcovidalcordasco@gmail.com"),
               person(given = "Delphine",
                      family = "Vettese"))
as necessary.

Maintainer: ‘Marco Vidal-Cordasco <marcovidalcordasco@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = c("Ana", "B."),
                      family = "Marín-Arroyo",
                      role = "aut"),
               person(given = "David",
                      family = "Ocio",
                      role = "aut"),
               person(given = "Marco",
                      family = "Vidal-Cordasco",
                      role = "cre",
                      email = "marcovidalcordasco@gmail.com"),
               person(given = "Delphine",
                      family = "Vettese"))
as necessary.

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Maintainer: ‘Marco Vidal-Cordasco <marcovidalcordasco@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = c("Ana", "B."),
                      family = "Marín-Arroyo",
                      role = 
...[truncated]...
o",
                      family = "Vidal-Cordasco",
                      role = "cre",
                      email = "marcovidalcordasco@gmail.com"),
               person(given = "Delphine",
                      family = "Vettese"))
as necessary.

Maintainer: ‘Marco Vidal-Cordasco <marcovidalcordasco@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = c("Ana", "B."),
                      family = "Marín-Arroyo",
                      role = 
...[truncated]...
o",
                      family = "Vidal-Cordasco",
                      role = "cre",
                      email = "marcovidalcordasco@gmail.com"),
               person(given = "Delphine",
                      family = "Vettese"))
as necessary.

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