Get the next permutation(s)/combination(s) for a iterator

Get the next permutation(s)/combination(s) for a iterator

getnext(I, d = 1, drop = TRUE)

Arguments

I	a permutation/combination iterator
d	number of permutation(s)/combination(s) wanted, default to 1
drop	if d is 1, drop simplify to vector if possible, default to TRUE.

Value

next d permutation(s)/combination(s) sequence for the iterator I