Thanks Henry and Hauke, Seeing the idiom and my use of raze I should have been able to infer that, since ;/ was working over the same axis I wanted. I have to reremember that ‘/‘ actually inserts it’s operator in between things, that may have helped to figure this out on my own from what I had done so far. Partly I use ‘/‘ so frequently to sum arrays of 1 dimension I think of it more as a LISP operation (+ 2 3 4) instead of what it is actually doing in J.
Tom McGuire > On May 29, 2020, at 11:19 AM, Henry Rich <henryhr...@gmail.com> wrote: > > Right: (,/ y) is the idiom. > > Henry Rich > > On 5/29/2020 11:13 AM, Hauke Rehr wrote: >> (;@;/ -: ,/) i. 12 2 4 >> 1 >> >> Am 29.05.20 um 17:04 schrieb Thomas McGuire: >>> I have a 3 dimensional array I want to squish it so the rows of the tables >>> just stack on top of each other. >>> >>> i. 12 2 4 >>> 0 1 2 3 >>> 4 5 6 7 >>> >>> 8 9 10 11 >>> 12 13 14 15 >>> >>> 16 17 18 19 >>> 20 21 22 23 >>> >>> 24 25 26 27 >>> 28 29 30 31 >>> >>> 32 33 34 35 >>> 36 37 38 39 >>> >>> 40 41 42 43 >>> 44 45 46 47 >>> >>> 48 49 50 51 >>> 52 53 54 55 >>> >>> 56 57 58 59 >>> 60 61 62 63 >>> >>> 64 65 66 67 >>> 68 69 70 71 >>> >>> 72 73 74 75 >>> 76 77 78 79 >>> >>> 80 81 82 83 >>> 84 85 86 87 >>> >>> 88 89 90 91 >>> 92 93 94 95 >>> >>> So I want the individual tables to stack right on top of each other >>> creating a 2 dimensional array. Now if I box them then unbox them it does >>> just what I want: >>> >>> ;;/i. 12 2 4 >>> 0 1 2 3 >>> 4 5 6 7 >>> 8 9 10 11 >>> 12 13 14 15 >>> 16 17 18 19 >>> 20 21 22 23 >>> 24 25 26 27 >>> 28 29 30 31 >>> 32 33 34 35 >>> 36 37 38 39 >>> 40 41 42 43 >>> 44 45 46 47 >>> 48 49 50 51 >>> 52 53 54 55 >>> 56 57 58 59 >>> 60 61 62 63 >>> 64 65 66 67 >>> 68 69 70 71 >>> 72 73 74 75 >>> 76 77 78 79 >>> 80 81 82 83 >>> 84 85 86 87 >>> 88 89 90 91 >>> 92 93 94 95 >>> >>> Now I could calculate the dimensions and reshape using ($ ,) >>> 24 4 ($ ,) i. 12 2 4 >>> <produces the condensed version above> >>> >>> But it seems there should be a non-calculating, non-boxing way of doing >>> this. I tried playing with the rank of ravel (,) with out success. >>> >>> Any suggestions? >>> >>> Tom McGuire >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >>> >> > > > -- > This email has been checked for viruses by AVG. > https://www.avg.com <https://www.avg.com/> > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > <http://www.jsoftware.com/forums.htm> ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
