Adding Items to Data
Provides the generic function merge and the S4 methods for
itemMatrix and transactions. The methods are used to add new items to
existing data.
merge(x, y, ...)
x |
an object of class |
y |
an object of the same class as x (or something which can be coerced to that class). |
... |
further arguments; unused. |
Returns a new object of the same class as x with the items in y added.
Michael Hahsler
data("Groceries")
## create a random item as a matrix
randomItem <- sample(c(TRUE, FALSE), size=length(Groceries),replace=TRUE)
randomItem <- as.matrix(randomItem)
colnames(randomItem) <- "random item"
head(randomItem, 3)
## add the random item to Groceries
g2 <- merge(Groceries, randomItem)
nitems(Groceries)
nitems(g2)
inspect(head(g2,3))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.