How about?
   4$.$.tst
0 3
2 0
3 3
5 0

On Wed, Jun 11, 2008 at 6:34 PM, Sherlock, Ric <[EMAIL PROTECTED]>
wrote:

> Thanks Roger & Henry,
> They are much simpler than the other way I just realised I had already
> created in the other thread.
>
> ind0=: (1 , {:@$) *"1 [: (<. ,. 1&|) {:@$ %~ [: I. ,  NB. RS
> ind1=: [:;(i.@:# ,.&.> <@I.)  NB. RS
> ind2=: $ #: I.@,   NB. RH & HR
> ind3=: , # (#: i.@(*/))@$  NB. HR
>
> Interestingly ind0 is actually very competitive with ind2, but would need
> more work to sort out tolerance (and is specific to matrices).
>   tmp=: 0.0000001>1e6 [EMAIL PROTECTED]
>   +/+/tmp
> 9
>   ts=: 6!:2 , 7!:[EMAIL PROTECTED]
>
>   ts 'ind0 tmp'
> 0.264977043172 134218688
>   ts 'ind1 tmp'
> 3.26141171573 221066560
>   ts 'ind2 tmp'
> 0.2667722434 134218688
>   ts 'ind3 tmp'
> |out of memory: ind3
> |       ind3 tmp
>
> ---Roger Hui wrote:
> > ($tst) #: I. , tst
> >
> > Works for any rank array, not just matrices.
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>
>
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