Yes Harvey, it works along the leading axis of the APL object… easy to sample/test…
1 0 1 # 1 2 3 1 3 1 0 1#i.3 2 0 1 4 5 1 0 1# i.3 4 5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 1 0 1#'one';'two';'three' ┌───┬─────┐ │one│three│ └───┴─────┘ …/Regards Rob > On 19 May 2020, at 9:55 pm, HH PackRat <[email protected]> wrote: > > On 5/19/20, Michael Dykman <[email protected]> wrote: >> In functional languages, you don't really delete so much as you make a >> fresh copy absent of the undesirable elements. >> Where you looking for this? >> >> ] a=. <"0 'abcdef' >> ┌─┬─┬─┬─┬─┬─┐ >> │a│b│c│d│e│f│ >> └─┴─┴─┴─┴─┴─┘ >> 0 0 1 1 0 1 # a >> ┌─┬─┬─┐ >> │c│d│f│ >> └─┴─┴─┘ > > That kind of thing is what gave me the idea of a boolean mask of some > type. However, can this be carried over, applying to rows of a table > instead? I'm thinking that it probably does in some way, but I want > confirmation on that. Thanks for your response! > > Harvey > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
