This module defines concrete subclasses for the<a href="../abstract">abstract</a>character matrix components that all character matrices must implement. The subclasses defined here apply to DNA character data. In a verbose notation, this data is referenced by the "state" attribute of the <cell> element, which points to a state element in the format block. I n a compact notation, the same data is represented as a sequence of tokens (whitespace is allowed but has no meaning). |