You're right, there is no difference. It is a redundant case of what I
meant to say:
shuffle =: 3 : '(?~#y){y'
shuffle p: i.7
17 2 7 13 11 3 5
On Mon, Jan 11, 2016 at 4:04 PM, Devon McCormick <[email protected]> wrote:
> I don't see how
> (?~21){i.21
> differs from
> ?~21
>
> On Mon, Jan 11, 2016 at 6:42 AM, Eddie Bracho <[email protected]> wrote:
>
> > Yes, does exactly what I need to do when used in conjunction with From
> ({).
> >
> > (?~21){i.21
> >
> > I should spend more time reviewing the primitive vocabulary. Thanks to
> > both of you for the assistance.
> >
> > Eddie
> >
> >
> >
> >
> > ________________________________________
> > From: Programming <[email protected]> on behalf
> of
> > Ben Gorte - CITG <[email protected]>
> > Sent: Monday, January 11, 2016 3:15 AM
> > To: [email protected]
> > Subject: Re: [Jprogramming] Roll (?) produces domain error on large input
> >
> > If I correctly understand your question, could it be you want:
> >
> > ?~21
> >
> > It gives a random permutation of i.21 (and also works for much larger
> > values)
> >
> > Ben
> > ________________________________________
> > From: Programming [[email protected]] on behalf
> of
> > Eddie Bracho [[email protected]]
> > Sent: Monday, January 11, 2016 11:22
> > To: [email protected]
> > Subject: [Jprogramming] Roll (?) produces domain error on large input
> >
> > (? ! 21)
> >
> > |domain error
> >
> > | ( ?!21)
> >
> >
> >
> > Is this intended behavior? I'm trying to shuffle an array by providing a
> > random permutation to Anagram (A.), but this limitation does not allow me
> > to shuffle arrays with more than 20 elements.
> >
> > ----------------------------------------------------------------------
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> > ----------------------------------------------------------------------
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> >
>
>
>
> --
>
> Devon McCormick, CFA
>
> Quantitative Consultant
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
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