Function used in simulate
for BM initialization.
init.simulate.BM(phy, p, root.state, simulate_random, ...)
paramSimu Array p x Nnode x 2 (BM), filled with NAs. Slice paramSimu[, ntaxa + 1, ] (array p x 2) is initialized with simulated states and root expectations for all the traits.
Input tree.
(list) State of the root, with: random : random state (TRUE) or deterministic state (FALSE) value.root : if deterministic, value of the character at the root exp.root : if random, expectation of the character at the root var.root : if random, variance of the character at the root (pxp matrix)