Poisson Random Field
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POISSON RANDOM FIELD. Quercus agrifolia, Coast live oak.
North side of Mayfield Ave, at Lomita Dr.
The Poisson random field (PRF) model is a model that predicts patterns in allele frequencies along a branch of an evolutionary tree, and is used in particular to examine shared polymorphisms and fixed differences between a pair of species. The PRF model relies on assumptions that features of mutations on the branches follow Poisson distributions in a somewhat similar manner to the Poisson-like random placement of the coast live oaks in this field.
Photo: Noah Rosenberg, August 30, 2018