Here's a simple translation, but both it and the original have the same
peculiarities.
ranks =: 3 : '3$&.|.y'
ranks
3 : '3$&.|.y'
ranks2 =: 13 : '3$&.|.y'
ranks2
3 $&.|. ]
r=: 13 :'|.(|. 3) $|.y'
r
[: |. 3 $ |.
5!:4 <'ranks'
-- 3
- : -+- ,:'3$&.|.y'
5!:4 <'ranks2'
-- 3
│ -- $
--+- &. -+- |.
L- ]
5!:4 <'r'
-- [:
+- |.
--+ -- 3
L----+- $
L- |.
ranks 2
2 2 2
ranks 2 3
3 2 3
ranks i.2 3 4
12 13 14 15
16 17 18 19
20 21 22 23
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15
16 17 18 19
20 21 22 23
r 2
2 2 2
r 2 3
3 2 3
r i.2 3 4
12 13 14 15
16 17 18 19
20 21 22 23
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15
16 17 18 19
20 21 22 23
I have't followed some of the later ways to find rank. My question is what
happened here. It seemed like a simple J expression.
Thanks
Linda
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Kip Murray
Sent: Monday, November 21, 2011 6:40 AM
To: Programming forum
Subject: Re: [Jprogramming] 21 November ranks challenge in Simple J
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
>
> ----------------------------------------------------------------------
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