I uploaded notes on inbreeding, population structure (focusing on the Wahlund effect), and F-statistics this weekend. This set of notes includes a discussion of (and some of the math for) Nei’s G-statistics and Weir and Cockerham’s $\theta$ statistics. The next set of notes will outline a Bayesian approach to estimating F-statistics that is conceptually similar to Weir and Cockerham’s approach. It will also include an appendix describing how to load the package we’ll use into R, since it isn’t (yet) available on CRAN.