Hi guys
I have 15000 observations across 7 variables.
I need some help with the code to generate all possible unique combinations of variables.
e.g. if I had 2 variables and 4 observations per variables
V1=a,b,c,d
V2=1,2,3,4
Then, combinations = a 1, a 2, a 3, a 4,b 1, b 2, b 3, b 4, c 1, c...