combinatorics: Functions for combinatorics

Functions for combinatorics (combinations with repetitions, derangements, etc.)

Functions

combinations_with_repetition(seq, size)	Yield all combinations of the elements of seq :rtype: Iterator[tuple[TypeVar(T), ...]]
derangements(seq)	Permutations of seq where each element is not in its original position
distance_from_sorted(seq[, offset])	Distance between seq and a sorted seq.
random_distance(length[, numseqs])	Calculate the distance between a sorted seq.
random_range(length)	Return an array of ints from 0 to length-1, in random order
unsort(seq, entropy[, margin, tolerance, ...])	Generate a permutation of xs unsorted according to the given entropy.
unsort2(xs[, entropy, margin, error, numiter])
unsortedness(seq)	The entropy of the ordering in this seq.