(~. ,. #/.~) 1 2 3 3 4
1 1
2 1
3 2
4 1

Backed by special code.

Henry Rich

On 10/11/2011 5:33 PM, David Vaughan wrote:
> How could I count occurrences of the same number in a sorted list?
>
> e.g. list =. 1 2 3 3 4
> 1 1
> 2 1
> 3 2
> 4 1
>
> or something along those lines.
>
> Thanks.
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