Basic checks on the validity of S4 phylogenetic objects
checkPhylo4(object)A prospective phylo4 or phylo4d object
As required by validObject, returns an error
string (describing problems) or TRUE if everything is OK.
the phylo4 constructor and
'>phylo4 class; the phylo4d-methods constructor
and the '>phylo4d class do checks for the data
associated with trees. See coerce-methods for
translation functions and phylobase.options to change
some of the default options of the validator.