I'm still working on the J code for this one: http://wondermark.com/zoo-table/ .
On Mon, Apr 28, 2014 at 10:51 AM, Don Guinn <[email protected]> wrote: > The values for the entire table can be easily generated in J but lack the > formatting of putting in the X and = to make it look exactly like the > output from Ruby. Many times people are more concerned on what the output > looks like and less about the thought behind it. > > ,.(2+i.4)(,,*)"0/(1+i.9) > 2 1 2 2 2 4 2 3 6 2 4 8 2 5 10 2 6 12 2 7 14 2 8 16 2 9 18 > 3 1 3 3 2 6 3 3 9 3 4 12 3 5 15 3 6 18 3 7 21 3 8 24 3 9 27 > 4 1 4 4 2 8 4 3 12 4 4 16 4 5 20 4 6 24 4 7 28 4 8 32 4 9 36 > 5 1 5 5 2 10 5 3 15 5 4 20 5 5 25 5 6 30 5 7 35 5 8 40 5 9 45 > > > > On Sun, Apr 27, 2014 at 11:22 PM, Raul Miller <[email protected]> > wrote: > > > I meant homogeneous at the top level. > > > > That's probably not what you meant, of course. What you meant (a > pervasive > > form of homogeneous) would probably be best represented by paring a flat > > array with an external representation of structure? > > > > Thanks, > > > > -- > > Raul > > > > > > On Mon, Apr 28, 2014 at 1:06 AM, greg heil <[email protected]> wrote: > > > > > >Wow great! Now i suppose for the next few weeks i will use try the > > appose > > > hammer on every problem i encounter (it is mostly directory structures > > that > > > are popping nails now) > > > > > > >i do wonder though what you mean by homogeneous when it is perfectly > > > normal to have a boxed structure such as > > > > > > 'asf';1 2 3;(i.2 3);2.3 4.5;1 0 1 1 > > > > > > Yes the external view is, but internal is anything but. So operators > > > can make NO assumptions which might be useful for simplification. Open > > > (and yours!) help though. > > > > > > greg > > > ~krsnadas.org > > > > > > -- > > > > > > from: Raul Miller <[email protected]> > > > to: Programming forum <[email protected]> > > > date: 27 April 2014 20:46 > > > subject: Re: [Jprogramming] [Jchat] How a Genius Programmer Rewirtes a > > > Ten-line code into One-line. > > > > > > Boxes are a homogeneous, ragged type. > > > > > > Also, something to think about: > > > > > > open=: &:> > > > > > > Thanks, > > > > > > -- > > > > > > from: greg heil <[email protected]> > > > to: Programming forum <[email protected]> > > > date: 27 April 2014 20:28 > > > subject: Re: [Jchat] How a Genius Programmer Rewirtes a Ten-line code > > > into One-line. > > > > > > >i kind of liked Rogers idea but missed the decoration afforded by > > > textbook tables. This kept it to just the snippet afforded by the > genius: > > > > > > * table open/ 1 2+ each i. each 9 4 > > > > > > >it is a bit annoying that J treats boxes in such a cumbersome manner, > so > > > i did have to define open: > > > > > > open=:1 : '([:>[) x [:>]' > > > > > > table and each are in the standard lib > > > > > > >i kind of miss the each`s (and the lack of boxes) of K -ragged data is > > so > > > easily dealt with (eg dictionaries, XML, json...). i do wonder if a > > subset > > > of J could be made where all the content of boxes were made of a > > homogenous > > > type, just ragged... > > > > > > greg > > > ~krsnadas.org > > > > > > -- > > > > > > from: Roger Hui <[email protected]> > > > to: Chat Forum <[email protected]> > > > date: 27 April 2014 15:29 > > > subject: Re: [Jchat] How a Genius Programmer Rewirtes a Ten-line code > > > into One-line. > > > > > > Yes, */~i.10. And then +/~i.10, >./~i.10, <./~i.10, |/~i.10, +./~i.10, > > > etc. > > > ---------------------------------------------------------------------- > > > 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 > -- Devon McCormick, CFA ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
