image {arules} | R Documentation |
Provides the S4 methods image
to
generate level plots to
visually inspect
binary incidence matrices, i.e.,
objects based on itemMatrix
(e.g., transactions, tidLists, items in itemsets or rhs/lhs in rules).
These plots can be used to identify problems in a data set
(e.g., recording problems with some transactions containing all items).
## S4 method for signature 'itemMatrix': image(x, ...) ## S4 method for signature 'transactions': image(x, ...) ## S4 method for signature 'tidLists': image(x, ...)
x |
the object (itemMatrix , transactions or
tidLists ). |
... |
further arguments passed on to image in
package Matrix. |
image
(in Matrix),
itemMatrix-class
,
transactions-class
,
tidLists-class
data("Epub") # in this data set we can see that not all # items were available from the beginning. image(Epub)