Thanks, I understand it now, and it works. On 8 Oct 2011, at 17:34, Raul Miller wrote:
> On Sat, Oct 8, 2011 at 12:19 PM, David Vaughan > <purpleblue...@googlemail.com> wrote: >> Could you maybe explain how that tacit verb works (and how it works with >> 'verb')? Is it something along the lines of, see if the input is not a >> member of trigger, multiply with trigger to get 0 0 or outp1 outp2, ... then >> I run out of ideas. :P >> >> On 8 Oct 2011, at 15:58, R.E. Boss wrote: >> >>> trigger=: outp1, outp2 >>> >>> verb ^: (trigger */@:-.@e.~ ])^:_ input > > outp1=: 2 > outp2=: 5 > trigger=: outp1, outp2 > > trigger e.~ 2 3 5 7 > 1 1 > trigger e.~ 1 2 3 4 > 1 0 > trigger e.~ 5 6 7 8 > 0 1 > trigger e.~ 9 10 11 12 > 0 0 > > -.1 1 > 0 0 > -.1 0 > 0 1 > -.0 1 > 1 0 > -.0 0 > 1 1 > > */0 0 > 0 > */0 1 > 0 > */1 0 > 0 > */1 1 > 1 > > So (trigger */@:-.@e.~ ]) is 1 when neither element of trigger is > present in its right argument and 0 otherwise. > > Meanwhile verb does whatever you need it to do (but you have not said > what that is yet, so we cannot make any useful suggestions there). > > FYI, > > -- > Raul > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
