c=:((128!:2)&.><)”0 seems to work great. Will have to work out exactly why it works — don’t understand the why the rank 0 boxing makes things happen the right way.
> On 3 May 2019, at 2:32 pm, Gilles Kirouac <[email protected]> wrote: > > or (not as simple) > > c=: (128!:2)&.>< > > g c"0 y > > ┌─┬───┬─┐ > > │9│0.5│1│ > > └─┴───┴─┘ > > Try removing "0 > > > Le 2019-05-02 à 22:35, 'Rob Hodgkinson' via Programming a écrit : >> Hi Piet, not ignorant at all ! >> >> Try using oblique (an obscure feature is that the u in u/. can be a gerund, >> in which case it is evoked cell wise); >> >> g=. *: ` -: `^ >> y=. 3 1 0 >> g /. y >> 9 >> 0.5 >> 1 >> >> Found in Section 15 of https://www.jsoftware.com/books/pdf/brief.pdf >> <https://www.jsoftware.com/books/pdf/brief.pdf>. >> >> HTH, Regards Rob >> >>> On 3 May 2019, at 10:59 am, pietdion <[email protected]> wrote: >>> >>> Hopefully not an ignorant question. >>> >>> Am looking for a simple (tacit, non complicated) construction (verb? >>> adverb? conjunction?) “c" that takes a gerund and applies the successive >>> verbs in the gerund to successive items. >>> >>> A simple example is >>> >>> g=. *: ` -: `^ >>> y=. 3 1 0 >>> g c y >>> 9 0.5 1 >>> >>> What “c” achieves this for arbitrary gerunds g's and y’s? >>> >>> I realise this can be done in a variety of explicit ways and with the >>> agenda construct. All I can come up with is intricate constructions. >>> Looking for something simple and direct. Seems to have a lot of uses. >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
