merge {arules} | R Documentation |
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.
transactions-class
,
itemMatrix-class
,
addComplement
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))