That's a good point, if you need an exact domain match (with the same error cases as the original, you could use a direct translation of the original: [: |. 3 $ |.
-- Raul On Mon, Nov 21, 2011 at 7:11 AM, Marc Simpson <[email protected]> wrote: > One possibility, > > ranks=: 3$(2=#)|.] > > Note that behaviour differs for lists of length > 3: > > ranks 2 > 2 2 2 > ranks 2 3 > 3 2 3 > ranks 2 3 4 > 2 3 4 > > ranks 2 3 4 5 NB. kip's returns 3 4 5 > 2 3 4 > > but since this is (presumably) an illicit input, I gather that the > above meets the requirements? > > Best, > M > > On Mon, Nov 21, 2011 at 11:39 AM, Kip Murray <[email protected]> wrote: > > It is 21 November, solutions are welcome. > > > > On 11/18/2011 11:33 AM, Kip Murray wrote: > >> Please wait until Monday 21 November to post solutions. > >> > >> From the Rank u"n page in the Vocabulary: > >> > >> The verb u"n applies u to each cell as specified by the rank n . The > >> full form of the rank used is 3$&.|.n . For example, if n=:2 , the three > >> ranks are 2 2 2 , and if n=: 2 3, they are 3 2 3 . > >> > >> The challenge: rewrite verb > >> > >> ranks =: 3 : '3$&.|.y' > >> > >> using a train with no conjunctions. > >> > >> ranks 2 > >> 2 2 2 > >> ranks 2 3 > >> 3 2 3 > >> > >> ---------------------------------------------------------------------- > >> 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
