Calculates the phylogenetic information content of a given character.
CharacterInformation(tokens)Character vector specifying the tokens assigned to each taxon for
a character. Example: c(0, 0, 0, 1, 1, 1, '?', '-').
Note that ambiguous tokens such as (01) are not supported, and should be
replaced with ?.`
CharacterInformation returns a numberic specifying the
phylogenetic information content of the character, in bits.
Other split information functions: SplitInformation,
TreesMatchingSplit,
UnrootedTreesMatchingSplit