Thank you everybody! I was just thinking that, using "1, I was just swapping
rows for columns - sloppy thinking; transpose is indeed necessary!

Using [ and ] as test functions on structure is very helpful, like using <
to demonstrate partitioning conjunctions.

Regards

Graham

On Thu, May 31, 2012 at 10:48 AM, Graham Parkhouse
<graham.parkho...@ntlworld.com> wrote:
>   e=: 2 7 1 8 2 8 1 8 3
>   pi=: 3 1 4 1 5 9 2 6 5
>   isecn=: ([: /:~ [: ~. e. # [)"1 ? ? NB. Intersection of the two sets
...
>   isecn/"1 e,.pi
>
>
>
>
>
>
>
>
> This last sentence give me 9 blank lines. I expected and wanted 1 2 3. 
> Is my view of rank and frames too simplistic?


----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

Reply via email to