Use this when you want to define all pairwise combinations of a set of variables.
Examples
pairwise(a, b, c)
#> -- Model Definition ------------------------------------------------------------
#>
#> Model ID : pairwise
#> Args : a, b, c
pairwise(I(rnorm(30)), I(rnorm(30)), I(rnorm(30)))
#> -- Model Definition ------------------------------------------------------------
#>
#> Model ID : pairwise
#> Args : <inline>, <inline>, <inline>