[SciPy-User] permutate elements - unique order

[Ferdinand]

Oh sorry, I made a mistake ...

of course abc conflicts with cba

It has to be:


function(a,b,c)

a   b   c
b   c   a
c   a   b


sorry for messing it up.


On 14.02.2011, at 15:39, Alan G Isaac wrote:

> On 2/14/2011 8:37 AM, Ferdinand wrote:
>> is there a function or an easy way to generate unique sequences of elements?
>> 
>> Like:
>> 
>> function(a,b,c)
>> 
>> output:
>> 
>> a   b   c
>> b   c   a
>> c   b   a
>> 
>> 
>> 
>> (not for example a  c  b  –  because a was on the first position already)
> 
> 
> 
> 
> This specification appears incomplete:
> is the first position special?
> E.g., why doesn't abc conflict with cba?
> 
> The term "unique sequence" suggested you were
> after permutations, but you clearly what something
> more restrictive.  (Or if not, see itertools.)
> 
> Alan Isaac
> 
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