Analysis code for Thomas et al. (2015): "Saami reindeer herders cooperate with social group members and genetic kin"

This repository contains the analysis code, written in R, for our paper "Saami reindeer herders cooperate with social group members and genetic kin" (published in Behavioral Ecology). The R code is released under a GNU General Public License. Before running, download the data files and unzip them into a 'data' subfolder.

Main files

• Main text.r -- this reproduces the analyses in the main text's results section
• Figure 3.r and Figure 4.r -- reproduces figures 3 and 4 respectively
• Tables 1 to 4.r -- reproduces tables 1-4 in main text
• SI.r -- reproduces the analyses in the supplementary information

Auxiliary files

These files are called from within the main files above so you don't need to worry too much about them.

• data-funcs/import data.r -- imports the data files and creates a social network of the gifts
• data-funcs/create dyadic data.r -- creates a dataframe for every ego-alter pair in the sample
• data-funcs/create adjacency matrices.r -- turns the gift network into adjacency matrices for gift giving, siida membership and relatedness. These are used for correlations in the main text and table S3
• multiplot.r -- function to plot more than one ggplot in a single output (used for figure 4) (source: Cookbook for R)
• siida relatedness.r -- calculates within-siida relatedness as well as grand mean and district mean relatedness (for figure 3 and main text)
• GEE/GEE models.r -- generalised estimating equations for tables 3 and S4
• GEE/standardize-gee.r -- modifies the standardize function in the package arm to work with GEE models