Creates corpus objects,
which comprise ordered sets of (possibly coded) vectors,
each describing a sequence of discrete symbols.
corpus(x, type, metadata = list()) is.corpus(x)
| x | List of sequences, where each sequence is an object of class
 | 
|---|---|
| type | (Character scalar) Symbol type. | 
| metadata | (List) List of metadata information. | 
An object of class corpus.