BHH2 (version 0.2-2)

subsets: Generation of all the combinations of k elements from n possible

Description

Generates all different subsets of size $r$ chosen from $n$ different elements.

Usage

subsets(n, r, v = 1:n)

Arguments

n

numeric. Number of elements to choose from.

r

numeric. Size of the subsets.

v

vector. Numeric or character vector of size n with the labels of the $n$ elements to choose from.

Value

• A matrix of dimension ($N \times r$), where $N$ is the total number of different combinations of $r$ elements chosen from $n$ possible.

References

Venables, Bill. "Programmers Note", R-News, Vol 1/1, Jan. 2001. http://cran.r-project.org/doc/Rnews

See Also

combinations of the gtools package.

Examples

library(BHH2)
subsets(5,3)
subsets(5,3,letters)
subsets(5,3,c(10,20,30,50,80))