An S4 class to represent a permutation order.
rowsAn integer vector giving the rows permutation.
columnsAn integer vector giving the columns permutation.
methodA character string indicating the seriation
method used.
x[[i]]Extracts informations from a slot selected by
subscript i. i should be one of "id",
"rows", "columns" or "method". Any unambiguous
substring can be given.
Other class:
DateEvent-class,
DateMCD-class,
DiversityIndex,
IncrementTest-class,
RefineCA-class