Provides the generic function and the S4 method
is.maximal for finding
1 2 3
the set of itemsets, rules or an itemMatrix object.
An itemset is maximal in a set if no proper superset of the itemset is contained in the set (Zaki et al., 1997).
We define here maximal rules, as the rules generated by maximal itemsets.
a logical vector with the same length as
for each element in
x if it is a maximal itemset.
Mohammed J. Zaki, Srinivasan Parthasarathy, Mitsunori Ogihara, and Wei Li (1997). New algorithms for fast discovery of association rules. Technical Report 651, Computer Science Department, University of Rochester, Rochester, NY 14627.
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