And what should be the result?
--- Leo Vo~handu <[EMAIL PROTECTED]> wrote:
> Hei, Oleg,
> try your J-line with a table
> 1 0 1 1 1 1 1 0
> 0 1 1 1 1 0 1 1
> 1 1 1 1 0 1 1 0
> 1 1 1 1 0 1 1 1
> 1 1 0 0 1 1 1 1
> 1 0 1 1 1 1 1 1
> 1 1 1 1 1 1 1 0
> 0 1 0 1 1 0 1 1
>
> Leo
>
>
>
> > Sorry, not quite. Here it is:
> >
> > ]j=. i,I.s{~i=.(i.>./)@:(+/) s=.(= >./@,)(-.=i.6)*.+/@:="1/~ t
> > 0 3
> > ]k=. I.*./ j{t
> > 1 2 5 7 8
> > (<j;k) { t
> > 1 1 1 1 1
> > 1 1 1 1 1
> >
> >
> > --- Oleg Kobchenko <[EMAIL PROTECTED]> wrote:
> >
> >> i,I.s{~i=.(i.>./)@:(+/) s=.(= >./@,)(-.=i.6)*.+/@:="1/~ (#"1~
> >> (=>./)@:(+/)) t
> >> 0 3
> >>
> >> Are there more and interesting examples?
> >>
> >>
> >> --- "Glenn M. Lewis" <[EMAIL PROTECTED]> wrote:
> >>
> >> > I apologize for replying to my own message, but I just realized that
> >> I must choose to either maximize the columns or maximize the
> >> rows... not both. So let's say I wish to maximize the columns. It
> >> appears that the three tied answers are still valid.
> >> > Thanks again!
> >> > -- Glenn
> >> >
> >> > Glenn M. Lewis wrote:
> >> >
> >> > > Hi all!
> >> > >
> >> > > Say I have a table with shape 'm n' (m rows, n columns)
> >> populated
> >> > > with ones and zeros.
> >> > >
> >> > > Let's say I would like to create the largest table possible by
> >> > > selecting the most rows and the most columns where all
> >> intersections of said rows and columns consist of all ones.
> >> > >
> >> > > I'm having difficulties coming up with an expression that gives
> >> me
> >> > > two lists... one for the rows and one for the columns that
> >> 'selects' the rows/columns that would make up this maximal table.
> >> > >
> >> > > Wow... I probably didn't explain that very well. Let me try
> >> an
> >> > > example.
> >> > >
> >> > > t =. 6 10 $ 0 1 1 0 0 1
> >> > > t
> >> > > 0 1 1 0 0 1 0 1 1 0
> >> > > 0 1 0 1 1 0 0 1 0 1
> >> > > 1 0 0 1 0 1 1 0 0 1
> >> > > 0 1 1 0 0 1 0 1 1 0
> >> > > 0 1 0 1 1 0 0 1 0 1
> >> > > 1 0 0 1 0 1 1 0 0 1
> >> > >
> >> > > By inspection, it appears that one of three solutions is
> >> possible
> >> > > that all tie for the maximum-sized table of all-ones (in this
> >> case, a shape '2 5' table.
> >> > > rows 0 and 3 with columns 1,2,5,7,8 or in J:
> >> > >
> >> > > (< 0 3 ; 1 2 5 7 8) { t
> >> > > 1 1 1 1 1
> >> > > 1 1 1 1 1
> >> > >
> >> > > or
> >> > >
> >> > > (< 1 4 ; 1 3 4 7 9) { t
> >> > > 1 1 1 1 1
> >> > > 1 1 1 1 1
> >> > >
> >> > > or
> >> > >
> >> > > (< 2 5 ; 0 3 5 6 9) { t
> >> > > 1 1 1 1 1
> >> > > 1 1 1 1 1
> >> > >
> >> > > The problem I'm having is coming up with these lists
> >> > > algorithmically...
> >> > >
> >> > > Any ideas on how to solve this?
> >> > >
> >> > > Thanks!
> >> > > -- Glenn Lewis
> >> > >
> >> > > ----------------------------------------------------------------------
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> >> > >
> >> > >
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> >> >
> >>
> >>
> >>
> >>
> >> ____________________________________________________________________________________
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> >> in the Yahoo! Answers Food & Drink Q&A.
> >> http://answers.yahoo.com/dir/?link=list&sid=396545367
> >> ----------------------------------------------------------------------
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> >>
> >
> >
> >
> >
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>
>
>
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