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Simulation study for the assessment of parameter estimation bias under an OU model. The relative bias in estimates of the attraction/selection parameter (α) through 1000 simulations under σ values ranging from 0.1 to 10, and α values ranging from 0.01 to 10. Simulations were performed for phylogenies with sizes ranging from 5 to 1000 taxa. OU, Ornstein–Uhlenbeck.
