Did I miss this somewhere? An alternative without inv. ,(>"0 z),' ' alpha bravo charlie
Linda -----Original Message----- From: programming-boun...@jsoftware.com [mailto:programming-boun...@jsoftware.com] On Behalf Of Ric Sherlock Sent: Monday, August 22, 2011 8:09 PM To: Programming forum Subject: Re: [Jprogramming] Flattening a list containing boxed elements If you're after the J equivalent of APL's Enlist then this should do the job: ; <@, S:0 test or: enlist=: [: ; <@, S:0 enlist test On Mon, Aug 22, 2011 at 9:03 PM, Henry Rich <henryhr...@nc.rr.com> wrote: > Not sure what you mean by flatten, but > > ; < S:0 test > 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 > > Henry Rich > > On 8/22/2011 4:14 AM, Gregory Nisbet wrote: >> I want to flatten a list containing boxed elements. >> >> a =: 1 ; 2 3 ; 4 5 >> b =: a ; a >> a =: b ; b >> test =: a ; b >> >> the array test thus contains many test boxes and was the ad hoc test >> case I was trying to flatten. >> >> flattening a multidimensional array is simple enough ,/^:_ >> >> but thus far, I can't seem to figure out how to flatten test and >> other similarly convoluted nested boxes. >> >> It particularly baffles me that> test and>"_1 test both result in errors. >> It seems like there's something simple I'm missing, but I can't quite >> figure out what. >> >> Any help would be much appreciated. >> --------------------------------------------------------------------- >> - 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
