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
