Provides the generic function size and S4 methods to get the
size of all elements from objects based on
itemMatrix.
For example, it is used to get a vector of transaction sizes (i.e.,
the number of present items (ones) per element (row) of the binary
incidence matrix) from an object of class
transactions).
Usage
size(x)
## S3 method for class 'itemMatrix':
size(x)
## S3 method for class 'itemsets':
size(x)
## S3 method for class 'rules':
size(x)
Arguments
x
an object.
Value
size returns a numeric vector of length length(x).
Each element is the size of the corresponding element (row in the
matrix; for rules it is the the sum of the elements in the RHS and the RHS)
in object x.