[Jprogramming] restricting permutations

[Ric Sherlock]

Skip, that seems like a very old version of the stats/base addon?
According to GitHub the sampledesign script was renamed to combinatorial
back in 2008.
perm is currently available in ~addons/stats/base/combinatorial.ijs
(stats/base/combinatorial)

On Tue, May 26, 2020 at 8:45 AM Skip Cave <skip at caveconsulting.com> wrote:

> Perm is in Addons/stats/base/sampledesign.
>
> perm
>
> 3 : 0
>
> z=. i.1 0
>
> for. i.y do. z=. ,/ (0 ,. 1 + z) {"2 1 \:"1 = i. 1 + {: $z end.
>
> :
>
> ,/ ({~ perm@#)"1 x comb y
>
> )
>
>
>
> Skip Cave
> Cave Consulting LLC
>
>
> On Mon, May 25, 2020 at 3:23 PM Brian Schott <schott.brian at gmail.com>
> wrote:
>
> > Skip,
> > I am having trouble finding perm.
> > I tried using A. in its place, but did not succeed.
> > But I think I see where you were going. Good idea.
> >
> > On Mon, May 25, 2020 at 2:54 PM Skip Cave <skip at caveconsulting.com>
> wrote:
> >
> > > ssmb=:+./@E.
> > >
> > > l21=.-.1 1 ssmb"1+./"2]1 2=/"1 n=.perm 4
> > >
> > > l30=.-.1 1 ssmb"1+./"2]0 3=/"1 n
> > >
> > > n#~l30*.l21
> > >
> > >
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