powerset {ggm}

Power set

Description

Finds the list of all subsets of a set.

Usage

powerset(set, sort = TRUE, nonempty = TRUE)

Arguments

set

A numeric or character vector.

sort

Logical value. If TRUE the subsets are sorted according to dimension. Default is TRUE.

nonempty

Logical value. If TRUE the empty set is omitted. Default is TRUE.

Details

If sort == FALSE the sets are in inverse lexicographical order.

Value

A list of all subsets of set.

Author(s)

Giovanni M. Marchetti

Examples

powerset(c("A", "B", "C"), nonempty = FALSE)  
powerset(1:3, sort = FALSE, nonempty = TRUE)