I'm not sure what you mean, but consider: 'abcba' </. 'abcde' +--+--+-+ |ae|bd|c| +--+--+-+
Basically, any monadic verb that can handle lists of items from the right argument will work with /. (but keep in mind that if the results have differing lengths, the short results will be padded when assembling the result). Thanks, -- Raul On Mon, Oct 14, 2019 at 3:18 PM 'Jim Russell' via Programming <[email protected]> wrote: > > Yes, much. That seems not the case for a character array left argument, thus > my confusion. Thank you! > What other arguments/verbs play nice with /, ? > > > On Oct 14, 2019, at 3:05 PM, Raul Miller <[email protected]> wrote: > > > > Ok, try this: > > > > 1 2 3 2 1 </. 'abcde' > > +--+--+-+ > > |ae|bd|c| > > +--+--+-+ > > > > The nub of the left argument determines the number of items in the > > result, but it's not sufficient to determine what's in each box. > > > > Is this clearer? > > > > Thanks, > > > > -- > > Raul > > > > > >> On Mon, Oct 14, 2019 at 1:24 PM 'Jim Russell' via Programming > >> <[email protected]> wrote: > >> > >> Sorry, I'm still stuck on u=#. (Or "," or "<" or "[" ). I'll try to > >> understand some harder working verbs, perhaps + or ! or I. or e? > >> > >>>> On Oct 14, 2019, at 12:18 PM, Raul Miller <[email protected]> wrote: > >>> > >>> On Mon, Oct 14, 2019 at 12:06 PM 'Jim Russell' via Programming > >>> <[email protected]> wrote: > >>>> Thank you Raul! I thought I was agreeing, until I got to the following: > >>>> > >>>>>> On Oct 14, 2019, at 11:40 AM, Raul Miller <[email protected]> > >>>>>> wrote: > >>>>> > >>>>> So ... it's the "only the nub" which is relevant here, if you do not > >>>>> care about the calculation which produces the result. > >>>> > >>>> What calculation? What would be different if (I was allowed to) just > >>>> supply (~.x) as a left argument? (Assuming I didn't care to waste the > >>>> cycles calculating the nub when it, at least its size, is going fall > >>>> out as a result of looking up each of the eight argument rows). > >>>> > >>>> But I'll accept that I'm missing something; the alternate that Roger > >>>> suggested looks like it should do exactly what I was looking for. > >>> > >>> The X U/.Y calculation. > >>> > >>> The order and values of X matter for that calculation, since they control > >>> it. > >>> > >>> Thanks, > >>> > >>> -- > >>> 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 > > ---------------------------------------------------------------------- > > 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
