In J6, with current packages:
viewmat {"2 m b 2
|domain error: wd
| wd'pc jvm;pn *',TITLE
{"2 m b 2
┌───┬───┐
│0 0│1 1│
├───┼───┤
│0 0│1 1│
└───┴───┘
Looks like this only works in J7.
--
Raul
On Tue, Jul 3, 2012 at 10:57 AM, Linda Alvord <lindaalv...@verizon.net> wrote:
> Hi, I checked my copy of my e-mail and this script was attached. Here it is
> again. Maybe you don't get attachments. Also here is a copy of the script.
>
> p=: 13 :'?(x,2)$y'
> N=:26
> P=:N p N
> lat=: 13 :'(y,+:y)$''. '''
> lat 5
> dots=: 13 :'<"1 (0{"1 y),.2*1{"1 y'
> dots 4 p 8
> spots=: 13 :'((i.x){(65+i.26){a.)(dots x p y)}lat y'
> 5 spots 11
> 12 spots 4
> N spots N
>
> load 'viewmat'
> NB. (number of points) voronoi (shape)
> NB. Generates an array of indices of the nearest point
> b=: 13 :'(i.y),."0 1 i.y'
> p=: 13 :'?(y,2)$ y'
> m=: 13 :'(i.<./)"1 +/"1 *:x-"1/~y'
>
> NB. Palettes of colors used in the examples below
> viewmat {"2 m b 2
>
> viewmat {"2 m b 3
>
> viewmat {"2 m b 4
>
> viewmat {"2 m b 5
>
> viewmat {"2 m b 6
>
> viewmat {"2 m b 7
>
> viewmat {"2 m b 8
>
> viewmat {"2 m b 9
>
> NB. Regions
> viewmat (p 2) m b 2
>
> viewmat (p 3) m b 3
>
> viewmat (p 4) m b 4
>
> viewmat (p 5) m b 5
>
> viewmat (p 6) m b 6
>
> viewmat (p 7) m b 7
>
> viewmat (p 8) m b 8
>
> viewmat Q=:(P=:p 9) m b 9
> P
> Q
>
>
> Linda
>
> -----Original Message-----
> From: programming-boun...@jsoftware.com
> [mailto:programming-boun...@jsoftware.com] On Behalf Of Mike Day
> Sent: Tuesday, July 03, 2012 8:38 AM
> To: Programming forum
> Subject: Re: [Jprogramming] Challenge 13 Plot Alot
>
> Attachment, Linda?
>
> Mike
>
> On 03/07/2012 2:41 AM, Linda Alvord wrote:
>> A new strategy for this challenge: As you make any progress on this
>> challenge, please send it along right away. Working together we may
>> make any solution become better and better.
>>
>>
>>
>> I've been trying to understand some code for Voronoi regions. The
>> script is attached develops the code. What I really want to do is
>> make a similar progression of plots in conventional X and Y
>> coordinates with polygon regions separated by line segments. Dots in
>> each regions should show the random points that determine the regions.
>>
>>
>>
>> When you try my code in jhs and gtk you will find the results very
>> different in style. I think the 8 plots will probably be more
>> similar in the two different environments.
>>
>>
>>
>> There are many examples of this problem available on the web, but
>> what I'm interested in is getting a sequence of steps that will help a
>> reader to understand how those results have been achieved.
>>
>>
>>
>> Feel free to ask questions along the way. I will be working on the
>> same problem along with you.
>>
>>
>>
>> ----------------------------------------------------------------------
>> 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
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