is.maximal {arules} | R Documentation

## Find Maximal Itemsets

### Description

Provides the generic function and the S4 method `is.maximal` for finding maximal itemsets. An itemset is maximal in a set if no proper superset of the itemset is contained in the set (Zaki et al., 1997).

### Usage

    is.maximal(x,...)
    ## S4 method for signature 'itemMatrix':
    is.maximal(x)

### Arguments

`x` | the set of itemsets or an itemMatrix object.
`...` | further arguments.

### Value

a logical vector with the same length as `x` indicating for each element in `x` if it is a maximal itemset.

### References

Mohammed J. Zaki, Srinivasan Parthasarathy, Mitsunori Ogihara, and Wei Li (1997). New algorithms for fast discovery of association rules. Technical Report 651, Computer Science Department, University of Rochester, Rochester, NY 14627.

### See Also

`is.superset`, `itemMatrix-class`, `itemsets-class`

[Package arules version 0.6-3 Index]