[Jprogramming] Boxing pairs

[Sam Simone]

NB. Use the infix adverb: x u\ y

NB. this applies u to every infix of x items of y

    t =. 1 2 2 4 1 5 3 4 4 2 3 3

2 <\ t

┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐

│1 2│2 2│2 4│4 1│1 5│5 3│3 4│4 4│4 2│2 3│3 3│

└───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘

- Sam

On Thu, Oct 27, 2016 at 2:28 PM, Skip Cave <skip at caveconsulting.com> wrote:

> What is the best way to box each sequential pair in a string of integers?
>
>    t =. 1 2 2 4 1 5 3 4 4 2 3 3
>
>
>
>   ??  t
> ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐
>
> │1 2│2 2│2 4│4 1│1 5│5 3│3 4│4 4│4 2│2 3│3 3│
>
> └───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┘
>
>
> Skip Cave
> Cave Consulting LLC
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm

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