Here's another approach for permutations with repetitions in J. If we characterize a permutation with repetitions as belonging to a sequence with a specific length a, and a maximum value b, and having an index value y, we can a verb for the argument pattern (a,b) Ap y like this:
Ap=: #/@[ #: ] Example use: 10 60 Ap ?5#60^10x 34 56 50 9 15 28 34 11 40 43 32 9 50 41 37 25 41 18 36 47 30 27 17 58 19 40 41 2 31 25 23 18 33 58 24 20 32 38 38 0 29 16 32 9 59 46 36 15 10 40 Thanks, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
