[x=.'abcdefg'{~ 10 2?.@$8
;/:~({."1 <@(\:{:"1)/.]) x
be
bb
ba
ce
ce
db
ed
ec
fe
fa
R.E. Boss
> -----Oorspronkelijk bericht-----
> Van: Programming <[email protected]>
> Namens 'Bo Jacoby' via Programming
> Verzonden: zaterdag 19 januari 2019 19:13
> Aan: 'Pascal Jasmin' via Programming <[email protected]>
> Onderwerp: Re: [Jprogramming] Sorting on two keys
>
>
> t{~/:(10*9-0{"1 t)+1{"1 t
>
> 8 2
>
> 8 3
>
> 8 4
>
> 7 2
>
> 7 4
>
>
>
>
>
> Den lørdag den 19. januar 2019 17.51.43 CET skrev 'Pascal Jasmin' via
> Programming <[email protected]>:
>
> if one of the columns is numeric, then negating it will sort the right way.
>
> (\: 1 ,/@(+`-\"1) ]) 5 2$7 4 8 2 8 4 7 2 8 3
>
>
>
>
> ________________________________
> From: Jimmy Gauvin <[email protected]>
> To: [email protected]
> Sent: Saturday, January 19, 2019 11:18 AM
> Subject: [Jprogramming] Sorting on two keys
>
>
>
> Hi,
>
>
> I need to sort on two keys, one descending the other asscending.
>
> (J takes care were ascending or descending
>
>
> Is there a better way to solve this ?
>
>
> ]t=:5 2$7 4 8 2 8 4 7 2 8 3
>
> 7 4
>
> 8 2
>
> 8 4
>
> 7 2
>
> 8 3
>
> ]tt=: t {~ /:1{"1 t
>
> 8 2
>
> 7 2
>
> 8 3
>
> 7 4
>
> 8 4
>
> ]tt {~ \:0{"1 tt
>
> 8 2
>
> 8 3
>
> 8 4
>
> 7 2
>
> 7 4
>
>
> Thanks,
>
>
> Jimmy
>
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