Having the following vector:
c("test1","test2","test3")
I am trying to get a list or data frame containing the following entries:
"test1" "test2" "test3"
"test1" "test2" NA
"test1" NA "test3"
"test1" NA NA
NA "test2" "test3"
NA "test2" NA
NA NA "test3"
The goal would be to get all possible subsets while the order doesn't matter, that is "text1" "text2" NA is equivalent to "text2" "text1" NA. I very much appreciate any help!