inspect
(Package: arules) :
Display Associations and Transactions in Readable Form
Provides the generic function inspect and S4 methods to display associations and transactions plus additional information formatted for online inspection.
The ASparameter class holds the mining parameters (e.g., minimum support) for the used mining algorithms. APparameter and ECparameter directly extend ASparameter with additional slots for parameters only suitable for the Apriori (APparameter) or the Eclat algorithms (ECparameter).
sample
(Package: arules) :
Random Samples and Permutations
Provides the generic function sample and the S4 method to take a sample of the specified size from the elements of x using either with or without replacement. sample can be used to sample from a set of transactions or associations.
subset
(Package: arules) :
Subsetting Itemsets, Rules and Transactions
Provides the generic function subset and S4 methods to subset associations or transactions (itemMatrix) which meet certain conditions (e.g., contains certain items or satisfies a minimum lift).
Provides the generic functions and the S4 method is.significant to find rules where the LHS and the RHS depend on each other. This uses Fisher's exact test and corrects for multiple comparisons.
unique
(Package: arules) :
Remove Duplicated Elements from a Collection
Provides the generic function unique and the S4 methods for itemMatrix. unique uses duplicated to return an itemMatrix with the duplicate elements removed.
Provides the generic function duplicated and the S4 methods for itemMatrix and associations. duplicated finds duplicated elements in an itemMatrix. It returns a logical vector indicating which elements are duplicates.
Provides the generic function match and the S4 methods for associations and transactions. match returns a vector of the positions of (first) matches of its first argument in its second.
affinity
(Package: arules) :
Computing Affinity Between Items
Provides the generic function affinity and the S4 methods to compute and return a similarity matrix with the affinities between items for a set of transactions.
providing 
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