List Representation for Objects Based on Class itemMatrix
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.
LIST(from, ...) ## S4 method for signature 'itemMatrix' LIST(from, decode = TRUE) ## S4 method for signature 'transactions' LIST(from, decode = TRUE) ## S4 method for signature 'tidLists' LIST(from, decode = TRUE)
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
|
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).
a list primitive.
Michael Hahsler
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)
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