Once exploratory statistics, filtering and subsetting the genotype calls are [complete do a PCA based on population.](https://github.com/pystatgen/sgkit-requirements/pull/4/files) 1. [PCA Jupyterhub notebook](https://github.com/pystatgen/sgkit-requirements/blob/d47dcbf9da9645adde08b72d9f54205e5cfe653b/stories/pop-structure-pca/006-PCA-Populations.ipynb)