Learning Objectives
- Identify effects of population structure on GWAS
- Interpret principal components of the genotype matrix
- Correct for population structure
- Define chip heritability
References
- Mills, Melinda C.; Barban, Nicola; Tropf, Felix C.. An Introduction to Statistical Genetic Data Analysis (p. 237). MIT Press. Kindle Edition. 
- J. Novembre, et al “Genes mirror geography within Europe,” Nature, vol. 456, no. 7218, pp. 98–101, Aug. 2008. 
- Auton, A., Altshuler, D. M., Durbin, R. M., Chakravarti, A., Clark, A. G., Donnelly, P., et al. (2015). A global reference for human genetic variation. Nature, 526(7571), 68–74. http://doi.org/10.1038/nature15393