combine

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Combining Objects

Provides the S4 methods to combine several objects based on '>itemMatrix into a single object.

Note, use union rather than c to combine several mined '>itemsets (or '>rules) into a single set.

Keywords
manip
Usage

# S4 method for itemMatrix
c(x, ..., recursive = FALSE)

# S4 method for transactions c(x, ..., recursive = FALSE)

# S4 method for rules c(x, ..., recursive = FALSE)

# S4 method for itemsets c(x, ..., recursive = FALSE)

Arguments
x

first object.

further objects of the same class as x to be combined.

recursive

a logical. If recursive=TRUE, the function recursively descends through lists combining all their elements into a vector.

Value

An object of the same class as x.

See Also

itemMatrix-class, transactions-class, rules-class, itemsets-class

Aliases
  • c
  • c,itemMatrix-method
  • c,transactions-method
  • c,rules-method
  • c,itemsets-method
Examples
# NOT RUN {
data("Adult")

## combine transactions
a1 <- Adult[1:10]
a2 <- Adult[101:110]

aComb <- c(a1, a2)
summary(aComb)

## combine rules (can contain the same rule multiple times)
r1 <- apriori(Adult[1:1000])
r2 <- apriori(Adult[1001:2000])
rComb <- c(r1, r2) 
rComb

## union of rules (a set with only unique rules: same as unique(rComb))
rUnion <- union(r1,r2)
rUnion
# }
Documentation reproduced from package arules, version 1.5-4, License: GPL-3

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