Dear,
Could I simulate continuous character evolution using a Ornstein-Uhlenbeck
model (Function rTraitCont in the package ape) with a negative alpha value?
My intention is to simulate trait evolution with different phylogenetic signal
(less or more similar than expected under Brownian motion evolution) using the
K statistic.
The function works with negative alpha, simulating traits with different K
values, but does it make any sense?
Thanks,
Vanderlei Debastiani
Laboratório de Ecologia Filogenética e Funcional
Programa de Pós-Graduação em Ecologia
Universidade Federal do Rio Grande do Sul
www.ufrgs.br/leff
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