[Haskell-cafe] groupBy huh?

[wren ng thornton]

On 3/3/11 8:14 PM, Brandon S Allbery KF8NH wrote:
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> On 3/3/11 20:09 , Jacek Generowicz wrote:
>>> 1<  2 ok, same group
>>> 1<  3 dito
>>> 1<  2 dito
>>> Thus you get [[1,2,3,2]]
>>
>> OK, that works, but it seems like a strange choice ...
>
> Stability is often valued in functions like this:  the order of elements is
> not altered.

Making it stable and also comparing adjacent elements is entirely doable.

-- 
Live well,
~wren