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Local ancestry across 22 autosomes for an African-American individual inferred by PCAdmix, a local ancestry inference software (Brisbin 2010) using HapMap European (CEU) and Yoruba (YRI) as source populations. The majority of the genome is inferred to be of African origin (blue), but a significant fraction of the genome is inferred to be of European origin (red). The purpose of this article is to model the distribution of ancestry assignments in such admixed individuals.
