Interesting that set doesn't implement distinct. It should be a pretty straight
forward implementation.
Erik.
--
i farta
> Den 24. mar. 2016 kl. 00.53 skrev Mark Engelberg <mark.engelb...@gmail.com>:
>
> The input should be a sequence not a set, so call seq on the input before
> passing it to this function.
>
> Sorry if that was unclear from the docs. (For some inputs, it is more
> forgiving, but when you call combinations with n=1, it calls distinct on the
> set, and clojure.core's implementation of distinct doesn't work on sets).
>
>> On Wed, Mar 23, 2016 at 3:45 PM, Matthias Grabmair
>> <matthias.grabm...@gmail.com> wrote:
>> I am just using the math combinatorics library and spent some time debugging
>> until I found out that combinations does not accept n=1. Is this intentional?
>>
>>
>> => (clojure.math.combinatorics/combinations #{1 2 3 4} 1)
>>
>> UnsupportedOperationException nth not supported on this type:
>> PersistentHashSet clojure.lang.RT.nthFrom (RT.java:933)
>>
>> expected: ((1)(2)(3)(4))
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