simulate.uncor.lnorm <-
function(tree, params = list(mean.log = -5, sd.log = 0.5)){
mean.log <- params$mean.log
sd.log <- params$sd.log
data.matrix <- get.tree.data.matrix(tree)
branch.rates <- rlnorm(n = length(tree$edge.length), meanlog = mean.log, sdlog = sd.log)
data.matrix[, 5] <- branch.rates
data.matrix[, 6] <- data.matrix[, 5] * data.matrix[, 7]
tree$edge.length <- data.matrix[, 6]
res <- list(tree, data.matrix)
names(res) <- c("phylogram", "tree.data.matrix")
class(res) <- "ratesim"
return(res)
}
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