Provides the generic function itemFrequency and S4 methods to get the
frequency/support for all single items in an objects based on
'>itemMatrix. For example, it is used to get the single
item support from an object of class '>transactions
without mining.
itemFrequency(x, ...)# S4 method for itemMatrix
itemFrequency(x, type, weighted = FALSE)
an object.
further arguments are passed on.
a character string specifying
if "relative" frequency/support or "absolute"
frequency/support (item counts) is returned. (default: "relative").
should support be weighted by transactions weights stored
as column "weight" in transactionInfo?
itemFrequency returns a named numeric vector. Each element is the
frequency/support of the corresponding item in object x. The items
appear in the vector in the same order as in the binary matrix in x.
# NOT RUN {
data("Adult")
itemFrequency(Adult, type = "relative")
# }
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