This module defines concrete subclasses for the abstract 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). The DNAToken simple type is a restriction of AbstractSymbol that defines a token of a IUPAC single character nucleotide token. An IUPAC ambiguity mapping. This is a concrete implementation of the state element, which requires a symbol element, in this case restricted to DNAToken, i.e. a single IUPAC nucleotide symbol, and optional mapping elements to refer to other states. The DNAUncertainStateSet type defines an IUPAC ambiguity mapping. It may enclose zero or more AbstractMapping elements to resolve ambiguities. The DNAPolymorphicStateSet type defines an IUPAC ambiguity mapping. It may enclose zero or more AbstractMapping elements to resolve ambiguities. A container for a set of states. A concrete implementation of the AbstractChar element. The DNAFormat class is the container of DNA column definitions. This is a single cell in a matrix containing a nucleotide observation. This is a simple type that specifies a sequence of DNA characters, following IUPAC single character symbols for nucleotides (and ambiguities). This is a row in a matrix of DNA data containing raw sequence data. This is a row in a matrix of DNA data containing granular observations. A matrix of rows with seq strings of type DNA. A matrix of rows with single character observations. A DNA characters block consisting of sequences preceded by metadata. A DNA characters block consisting of granular cells preceded by metadata.