duplicated: Find Duplicated Elements

In arules: Mining Association Rules and Frequent Itemsets

Find Duplicated Elements

Description

Provides the generic function duplicated() and the methods to find duplicated elements in itemMatrix, associations and their subclasses.

Usage

duplicated(x, incomparables = FALSE, ...)

## S4 method for signature 'itemMatrix'
duplicated(x, incomparables = FALSE)

## S4 method for signature 'rules'
duplicated(x, incomparables = FALSE)

## S4 method for signature 'itemsets'
duplicated(x, incomparables = FALSE)

Arguments

x	an object of class itemMatrix or associations.
incomparables	argument currently unused.
...	further arguments (currently unused).

Value

A logical vector indicating duplicated elements.

Author(s)

Michael Hahsler

See Also

Other associations functions: abbreviate(), associations-class, c(), extract, inspect(), is.closed(), is.generator(), is.maximal(), is.redundant(), is.significant(), is.superset(), itemsets-class, match(), rules-class, sample(), sets, size(), sort(), unique()

Other itemMatrix and transactions functions: abbreviate(), c(), crossTable(), extract, hierarchy, image(), inspect(), is.superset(), itemFrequency(), itemFrequencyPlot(), itemMatrix-class, match(), merge(), random.transactions(), sample(), sets, size(), supportingTransactions(), tidLists-class, transactions-class, unique()

Examples

data("Adult")

r1 <- apriori(Adult[1:1000], parameter = list(support = 0.5))
r2 <- apriori(Adult[1001:2000], parameter = list(support = 0.5))

## Note this creates a collection of rules from two sets of rules
r_comb <- c(r1, r2)
duplicated(r_comb)

arules documentation built on June 8, 2025, 12:10 p.m.