custom R functions file

This R file ("genomics_R_functions_V2.R" contains functions written by Darren Irwin originally for the analysis of Greenish Warbler GBS variation (in Irwin et al. 2016, Molecular Ecology) and modified more recently for the analysis of 3 North American warbler species groups (in Irwin et al. in review, Molecular Ecology). These functions are designed to work more broadly for any dataset in similar input format. To reproduce the analysis in the paper, the main R script file ("warbler_GBS_analysis_script_for_Dryad.R") should be run; it calls functions in the present file.