impute.data.Rphylopars uses function phylopars from package Rphylopars
to impute missing data.
impute.data.Rphylopars(phylo, Y_data, process, random.init)a phylogenetic tree, class phylo.
data at the tips.
the stochastic process
whether root is random or fixed.
Y_data_imp the imputed data using Rphylopars
This function assume that there are no shifts on the tree. It is only a first approximation for initialization purposes.