Generate all possible permutations (or n-tuples)
r
Solution
how about this:
tmp = expand.grid(1:2,1:2,1:2,1:2,1:2,1:2,1:2,1:2,1:2,1:2)
or this (thanks Tyler):
x <- list(1:2)
tmp = expand.grid(rep(x, 10))
Problem
I'd like to create a data.frame of all possible permutations of 10 variables that can be either 1 or 2 ``` 2*2*2*2*2*2*2*2*2*2 = 1024 # possible 1,1,1,1,1,1,1,1,1,1 1,2,1,1,1,1,1,1,1,1 1,2,2,1,1,1,1,1,1,1 1,2,2,2,1,1,1,1,1,1 ... ``` Is there a "quick" way to do this in R?