On Thu, Nov 19, 2009 at 10:40 AM, Roger Hui <rhui...@shaw.ca> wrote: > There is no bug. The forms m...@.n and m...@.v are fundamentally > different. In particular, m...@.v y is not the same as m...@.(v y) y .
Is it possible, using the form m...@.v y, that allows a train from m be applied to y? > > > > ----- Original Message ----- > From: Dan Bron <j...@bron.us> > Date: Thursday, November 19, 2009 7:35 > Subject: Re: [Jprogramming] Wrong agenda? > To: Programming forum <programming@jsoftware.com> > >> Pepe wrote: >> > What is wrong with the agenda in the last line? >> > (-`%)@.((0 1)"_) 1 2 3 4 5 >> > |rank error >> >> Nothing wrong with the expression; the interpreter has a >> bug. >> >> I guess few people use verbal agenda to construct trains, so >> this hasn't >> been caught before. Most often agenda is used to select a >> single verb >> from the agenda, so agenda expects the verb to return a scalar. >> >> I tried a workaround. I boxed the list so that the verb >> returns a scalar, >> which should have no effect on the train produced (the box would >> theoretically just put a pair of parens around the train): >> >> (- >> `%)@.((<0 1)"_) 1 2 3 4 5 >> |length error >> | (-`%)@.((<0 1)"_)1 2 3 >> 4 5 >> >> >> but no joy. >> >> -Dan >> >> >> ----- Original Message --------------- >> >> Subject: Re: [Jprogramming] Wrong agenda? >> From: Don Guinn <dongu...@gmail.com> >> Date: Thu, 19 Nov 2009 07:47:05 -0700 >> To: Programming forum >> <programming@jsoftware.com> >> Added parens to make the rank apply to the entire expression. >> >> ((-`%)@.((0 1))"_) 1 2 3 4 5 >> 0 1.5 2.66667 3.75 4.8 >> >> Is this what you wanted? >> >> On Thu, Nov 19, 2009 at 7:07 AM, Jose Mario Quintana < >> josemarioquint...@2bestsystems.com> wrote: >> >> > What is wrong with the agenda in the last line? >> > >> > (- %) 1 2 3 4 5 >> > 0 1.5 2.66666667 3.75 4.8 >> > >> > (-`%)@.(0 1) 1 2 3 4 5 >> > 0 1.5 2.66666667 3.75 4.8 >> > >> > (-`%)@.((0 1)"_) 1 2 3 4 5 >> > |rank error >> > | (-`%)@.((0 1)"_)1 2 3 4 5 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
