One character shorter:

   3(]#~0=(|#\))i.8
2 5

Thanks,

-- 
Raul

On Thu, Oct 31, 2019 at 12:43 PM Henry Rich <[email protected]> wrote:
>
>     3 ({:;._3~ ,:~)~ i. 8
> 2 5
>
> Henry Rich
>
> On 10/31/2019 12:33 PM, Lorenz Köhl wrote:
> > NB. get items with odd index
> > odd=. ] #~ 0 1 $~ #
> >
> > Generalizing this I got
> >
> > NB. get the nth items
> > nth=. ] #~ (1 ,~ 0 $~ 1 -~ [) $~ [: # ]
> >
> > I bet this is not the shortest version!
> >
> > I tried infix but it includes fret/fill
> >
> > wrong_odd=. [: {: [: |: _2 ]\ ]
> >
> > happy halloween
> >
> > Lo
> > ----------------------------------------------------------------------
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>
>
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