lerna

<p>This data set gives the stable carbons and nitrogen isotope ratios of the 39 human bone samples from Middle Bronze Age (ca. 2100--1700 BC) Lerna, Greece reported in Triantaphyllou et al. (2008).</p>

datasets

This estimates precise weaning ages
for a given skeletal population
by analyzing the stable nitrogen isotope ratios of them.
Bone collagen turnover rates estimated anew and
the approximate Bayesian computation (ABC)
were adopted in this package.

Takumi Tsutaya

WARN

Weaning Age Reconstruction with Nitrogen Isotope Analysis

lerna function

<p><code>lerna</code> is a data frame with 39 individuals (rows) and 5 variables (columns) of ID (skeletal number), sex, estimated age at death, and carbon and nitrogen isotope ratios, named <code>id</code>, <code>sex</code>, <code>age</code>, <code>d13C</code>, and <code>d15N</code>, respectively. <code>sex</code> is a factor with levels <code>f</code>, <code>m</code>, and <code>u</code>, which corresponds to famale, male, unknown, respectively. The estimated ages at death were midpoint values.</p>

lerna: Stable isotopic data of the Lerna population

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