arules (version 1.6-4)

LIST: List Representation for Objects Based on Class itemMatrix

Description

Provides the generic function LIST and the S4 methods to create a list representation from objects based on '>itemMatrix (e.g., '>transactions, '>tidLists, or '>itemsets). These methods can be used for the coercion to a list.

Usage

LIST(from, …)
# S4 method for itemMatrix
LIST(from, decode = TRUE)
# S4 method for transactions
LIST(from, decode = TRUE)
# S4 method for tidLists
LIST(from, decode = TRUE)

Arguments

from

the object to be converted into a list.

…

further arguments.

decode

a logical controlling whether the items/transactions are decoded from the column numbers internally used by '>itemMatrix to the names stored in the object from. The default behavior is to decode.

Value

a list primitive.

Details

Using LIST with decode = TRUE is equivalent to the standard coercion as(x, "list"). LIST returns the object from as a list of vectors. Each vector represents one row of the '>itemMatrix (e.g., items in a transaction or itemset).

See Also

decode, coerce,itemMatrix,list-method, itemMatrix-class, DATAFRAME

Examples

# NOT RUN {
data(Adult)

### default coercions (same as as(Adult[1:5], "list"))
LIST(Adult[1:5])

### coercion without item decoding
LIST(Adult[1:5], decode = FALSE)
# }