Get Combination Indices

Source: R/utils.R

Generates a list with two arrays of indices that make up complete enumeration of all combinations (order does not matter) of elements of vector of length n.

combination_indices(n, repeats = FALSE)

Arguments

n

Number of elements in vector to get combinations of
repeats

Do we allow repeats in pairs? E.g. should a-a, b-b, etc. be allowed in generated pairs?

Value

A list with two vectors ($a and $b) containing integer indices of elements for every pair.

See also

Other helpers: build_score_fn(), get_sweep_pair_counts(), get_sweep_results(), print.sbm_network(), rolling_mean(), verify_model()

Examples


if (FALSE) {
my_letters <- head(letters, 5)

letter_pairs <- combination_indices(length(my_letters), repeats = FALSE)

dplyr::tibble(
  letter_1 = letters[letter_pairs$a],
  letter_2 = letters[letter_pairs$b]
)
}