[Octave-bug-tracker] [bug #50426] perms() sort order different than Matlab

[anonymous]

Follow-up Comment #15, bug #50426 (project octave):

Then let's say in the second paragraph of the documentation

Results are returned in inverse lexicographic order. Possible repetitions of
entries are neglected, that is, the result has always size @code{factorial
(@var{n}) * @var{n}}, where @var{n} is the length of @var{v}. For generating
only differing permutations use @code{unique (perms (@var{v}),
"rows")(end:-1:1,:)}.

Of course, this is now again a point where it would be more efficient to do
this natively in the algorithm as opposed to afterwards. This non-matlab
behaviour could be invoked by an additional argument to perms, but I think we
wait until somebody really wants this, right?

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