| unique {arules} | R Documentation |
Remove Duplicated Elements from a Collection
Description
Provides the generic function unique() and the methods for
itemMatrix transactions, and associations.
Usage
unique(x, incomparables = FALSE, ...)
## S4 method for signature 'itemMatrix'
unique(x, incomparables = FALSE)
## S4 method for signature 'associations'
unique(x, incomparables = FALSE, ...)
Arguments
x |
an object of class itemMatrix or associations. |
incomparables |
currently unused. |
... |
further arguments (currently unused). |
Details
unique() uses duplicated() to return an
object with the duplicate elements removed.
Value
An object of the same class as x with duplicated elements
removed.
Author(s)
Michael Hahsler
See Also
Other associations functions:
abbreviate(),
associations-class,
c(),
duplicated(),
extract,
inspect(),
is.closed(),
is.generator(),
is.maximal(),
is.redundant(),
is.significant(),
is.superset(),
itemsets-class,
match(),
rules-class,
sample(),
sets,
size(),
sort()
Other itemMatrix and transactions functions:
abbreviate(),
crossTable(),
c(),
duplicated(),
extract,
hierarchy,
image(),
inspect(),
is.superset(),
itemFrequencyPlot(),
itemFrequency(),
itemMatrix-class,
match(),
merge(),
random.transactions(),
sample(),
sets,
size(),
supportingTransactions(),
tidLists-class,
transactions-class
Examples
data("Adult")
r1 <- apriori(Adult[1:1000], parameter = list(support = 0.5))
r2 <- apriori(Adult[1001:2000], parameter = list(support = 0.5))
## Note that this produces a collection of rules from two sets
r_comb <- c(r1, r2)
r_comb <- unique(r_comb)
r_comb