Getting Frequency/Support for Single Items
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 signature 'itemMatrix' itemFrequency(x, type, weighted = FALSE)
x |
an object. |
... |
further arguments are passed on. |
type |
a character string specifying
if |
weighted |
should support be weighted by transactions weights stored
as column |
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.
Michael Hahsler
data("Adult")
itemFrequency(Adult, type = "relative")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.