After Reply -> Format Text -> Zoom -> Click 100% (What a relief!) From Microsoft Help
Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Linda Alvord Sent: Saturday, January 12, 2013 2:19 AM To: programm...@jsoftware.com Subject: Re: [Jprogramming] joining to an empty list Fortunately it shows up in my sent messages in small print. Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Raul Miller Sent: Friday, January 11, 2013 10:14 PM To: programm...@jsoftware.com Subject: Re: [Jprogramming] joining to an empty list On Fri, Jan 11, 2013 at 10:07 PM, Linda Alvord <lindaalv...@verizon.net> wrote: > I don't understand why f and g do not agree? Because they are doing something different. > #&>'one';'two';'three' > 3 3 5 > f=: 13 :'#&>y' > f 'one';'two';'three' > 3 3 5 f counts the number of items in each box. > NB. Compose: u&v y ↔ u v y > > g=: 13 :'#>y' > g=: 13 :'#>y' > g 'one';'two';'three' > 3 g counts the number of items after unboxing. Let's try replacing # with < <@> 'one';'two';'three' +---+---+-----+ |one|two|three| +---+---+-----+ <> 'one';'two';'three' +-----+ |one | |two | |three| +-----+ Or, let's change the data and use $ $@> i.each 2 2; 3 3; 4 4 2 2 3 3 4 4 $> i. each 2 2; 3 3; 4 4 3 4 4 Remember that > has rank 0 so F@> is going to run an independent instance of F for each box that you are unpacking. Does this help? -- 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
