I have a value 'y' in my REPL that is a sequence containing two sequences of numbers: (def y '( (15 18 17 17 16 19 16 10 21 16 21 23 19 16 18 15 21 14 21 12 26 17 13 22 26 16 14 17 11 15 16 18 13 10 18 18 19 13 14 17 19 18 15 20 20 17 20 19 12 20 14 21 13 17 15 22 17 21 13 15 16 17 14 21 14 15 17 16 25 22 13 19 23 20 16 16 17 13 15 19 20 14 15 17 13 17 11 17 16 20 16 20 15 14 13 18 18 17 15 16 15 18 28 12 20 16 17 22 20 23 15 16 21 24 18 18 18 18 14 18 21 15 12 19 19 16 12 15 21 19 18 17 16 17 16 18 18 12 18 18 17 20 21 15 20 19 19 15 21 17 13 18 11 19 18 21 17 23 15 16 17 17 15 17 17 15 15 14 19 18 18 14 17 14 18 25 24 11 20 15 13 20 18 16 20 20 16 16 18 15 18 22 18) (24 18 20 17 19 19 20) )) When I ask for the frequencies of the two sequences, one is a sorted map and the other is unsorted. => (keys (frequencies (first y))) (10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28) => (keys (frequencies (second y))) (24 18 20 17 19) The classes of the maps don't indicate that the first map is indeed sorted, but it cannot be a coincidence that they keys are returned in order. (I tried it with some more data concatenated and it was still in order.) The source for 'frequencies' (version 1.5.1) does not reveal to me why I get sorted in one case and unsorted in the other. It must be to do with the length of the sequence, but what is the full explanation? Thanks, Gavin
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