Given a set of variables, compute the inclusion indicators for
all possible subsets.
Arguments
- set
the set from which to compute all subsets (e.g., 1:p)
Value
a data frame where the rows indicate the 2^p different subsets
and the columns indicate inclusion (logical) for each element in that subset
References
Code adapted from <https://www.r-bloggers.com/2012/04/generating-all-subsets-of-a-set/>