Number of undirected connection columns
Usage
n_connections(n, diagonal = FALSE)
Arguments
- n
Number of codes
- diagonal
Include self-connections (A & A): n(n+1)/2 instead of choose(n, 2)
Examples
n_connections(4L) # 6: choose(4, 2)
#> [1] 6
n_connections(4L, diagonal = TRUE) # 10: 4 * 5 / 2
#> [1] 10