Thanks Henry. You've made it crystal clear for me.
On Mon, Jan 20, 2014 at 3:47 PM, Henry Rich <henryhr...@nc.rr.com> wrote: > 0 1:} y > > is the u} form of }, executing u to get the indexes to be modified. > > 0 1:} y will be the same as > 0 (1)} y > > Henry Rich > > > On 1/20/2014 10:32 AM, Ian Clark wrote: > >> Thanks, Brian, for answering Bo for me. >> >> Bo's question made me scratch my head. >> I did zeroco so long ago I've forgotten what I was thinking at the time. >> >> 0 1} i.6 >> |rank error >> | 0 1}i.6 >> 0 1:} i.6 >> 0 0 2 3 4 5 >> >> So the example is genuine: it works. But why??? >> I tried covering 1: to see just what it gets called with... >> >> one=: 3 : 0 >> smoutput 'one' ; y >> 1 >> : >> smoutput x ; 'one' ; y >> 1 >> ) >> 0 one} i.6 >> ┌─┬───┬───────────┐ >> │0│one│0 1 2 3 4 5│ >> └─┴───┴───────────┘ >> 0 0 2 3 4 5 >> >> ...so (one) -- and therefore presumably 1: -- gets called dyadically with >> the 0 and the i.6 >> >> But I have to admit I don't really know why it works :-) >> Perhaps I will when I've had my afternoon nap. >> >> >> On Mon, Jan 20, 2014 at 1:29 PM, Brian Schott <schott.br...@gmail.com >> >wrote: >> >> Bo, >>> >>> Amend is an adverb that can take either a noun or a verb as its immediate >>> argument. The reason the first example fails is that when 0 1 is used, >>> amend takes the 0 and the 1 as its argument, not just the intended 1, >>> because the parser does not know to separate out the two numbers. But >>> when >>> 1: is the supplied, because it is a verb and 0 is not, the correct result >>> is obtained. >>> >>> >>> On Mon, Jan 20, 2014 at 2:02 AM, Bo Jacoby <bojac...@yahoo.dk> wrote: >>> >>> >>>> Thanks for the http://www.jsoftware.com/jwiki/Vocabulary/zeroco . I >>>> have >>>> trouble in understanding the example >>>> >>>> 0 1} i.6 NB. Try to amend 1{i.6 to zero |rank error | 0 1}i.6 >>>> 0 1:} i.6 0 0 2 3 4 5 >>>> Is there a typo in the comment? ('{' versus '}') >>>> >>>> I thought that 0 1:} is a fork, but is is not: >>>> >>>> >>>> (0 1: }) i.6 >>>> |syntax error >>>> | ( 0 1:})i.6 >>>> >>>> Is it a hook? >>>> 0 (1: }) i.6 >>>> 0 0 2 3 4 5 >>>> >>>> >>>> So I'm pretty confused. >>>> Thanks, Bo. >>>> >>>> >>> -- >>> (B=) >>> ---------------------------------------------------------------------- >>> 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
