arules (version 1.6-8)

supportingTransactions: Supporting Transactions

Description

Find transactions which support each of a set of associations and return this information as a transaction ID list.

Usage

supportingTransactions(x, transactions, ...)

Arguments

x

a set of associations (itemsets, rules, etc.)

transactions

an object of class transactions used to mine the associations in x.

…

currently unused.

Value

An object of class tidLists containing one transaction ID list per association in x.

Details

The supporting transactions are all transactions of which the itemset representing the association is a subset of.

See Also

tidLists-class

Examples

# NOT RUN {
data <- list(
	c("a","b","c"),
	c("a","b"),
	c("a","b","d"),
	c("b","e"),
	c("b","c","e"),
	c("a","d","e"),
	c("a","c"),
	c("a","b","d"),
	c("c","e"),
	c("a","b","d","e")
	)
data <- as(data, "transactions")

## mine itemsets
f <- eclat(data, parameter = list(support = .2, minlen=3))
inspect(f)

## find supporting Transactions
st <- supportingTransactions(f, data)
st

as(st, "list")
# }