| sets {arules} | R Documentation |
Provides the generic functions
and the S4 methods for
the set operations
union,
intersect,
setequal,
setdiff and
is.element
on
sets of associations (e.g., rules, itemsets) and itemMatrix.
union(x, y) intersect(x, y) setequal(x, y) setdiff(x, y) is.element(el, set)
x,y, el, set |
sets of associations or itemMatrix objects. |
All S4 methods for set operations are defined for the
class name "ANY" in the signature,
so they should work for all S4 classes for which the following
methods are available: match, length and unique.
union,
intersect,
setequal and
setdiff return an object of the same class as
x and y.
is.element returns a logic vector of length el indicating
for each element if it is included in set.
associations-class,
itemMatrix-class
data("Adult")
### mine some rules
r <- apriori(Adult)
### take 2 subsets
r1 <- r[1:10]
r2 <- r[6:15]
union(r1,r2)
intersect(r1,r2)
setequal(r1,r2)