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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