mrp.supertree(trees, method=c("pratchet","optim.parsimony"), ...)"multiPhylo" (i.e., a list of trees).pratchet or optim.parsimony.pratchet or optim.parsimony."phylo" or "multiPhylo" object that is the MP or set of MP MRP trees.pratchet or optim.parsimony rom the "phangorn" package (Schliep 2011) and prop.part from the "ape" package (Paradis et al. 2004). See pratchet or optim.parsimony for optional arguments, which vary slightl depending on the method. All optional arguments of these methods are available to the user with one exception. The argument tree in optim.parsimony is supplied instead as start. In addition to being an object of class "phylo", start can also be assigned the string values of "NJ" or "random", in which case either a neighbor-joining or random tree will be used as the starting tree for optimization.exhaustiveMP, optim.parsimony, pratchet