| associations-class {arules} | R Documentation |
The associations class is a virtual class which is extended to
represent mining result (e.g., sets of itemsets or rules). The class
provides accessors for the quality slot and a method for sorting the
associations.
A virtual class: No objects may be created from it.
quality:data.frame for quality
measures (e.g., interest measures as support or confidence). Each
quality measure is a named vector with the same length as the
number of elements in the set of associations and each vector
element belongs to the association with the same index.signature(x = "associations");
dummy method. This method has to be implemented by all subclasses
of associations and return the items which make up each
association as an object of class
itemMatrix.signature(object = "associations");
dummy method. This method has to be implemented by all subclasses
of associations and return a vector
of length(object) of labels
for the elements in the association.signature(x = "associations");
dummy method. This method has to be implemented by all subclasses
of associations and return the number of elements in the
association.signature(x = "associations");
replaces the quality data.frame. The length of the vectors
in the data.frame has to equal the number of associations
in the set.signature(x = "associations");
returns the quality data.frame.signature(object = "associations")