Pairwise name combinations (as concatenated strings)

Generate all 2-combinations of a set of names and return each pair as a single concatenated string (e.g., `"ab"`, `"ac"`, ...).

Usage

wcor(n, names = NULL)

Arguments

n

Integer. Number of elements (and number of names to generate if `names` is `NULL`).

names

Character vector of length `n`. If `NULL`, defaults to `letters[1:n]`.

Value

A character vector of length `choose(n, 2)` containing concatenated name pairs.

Details

If `names` is not provided, the first `n` lowercase letters (`letters[1:n]`) are used as default names.

Uses [gtools::combinations()] to generate all unordered pairs of `names`, then concatenates each pair with no separator.

See also

[gtools::combinations()]

Examples

wcor(4)
#> Error in loadNamespace(x): there is no package called ‘gtools’
wcor(3, c("x", "y", "z"))
#> Error in loadNamespace(x): there is no package called ‘gtools’