Combinations of multiple vectors in R

Question

I\'m not sure if permutations is the correct word for this. I want to given a set of n vectors (i.e. [1,2],[3,4] and [2,3]) permute th

Answer 1

This is what expand.grid does.

Quoting from the help page: Create a data frame from all combinations of the supplied vectors or factors. The result is a data.frame with a row for each combination.

expand.grid(
    c(1, 2),
    c(3, 4),
    c(2, 3)
)

  Var1 Var2 Var3
1    1    3    2
2    2    3    2
3    1    4    2
4    2    4    2
5    1    3    3
6    2    3    3
7    1    4    3
8    2    4    3