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Re: Deleting elements from a Table


this may be very time expensive.

TabIN /. {a___,{q_,_},c___,{q_,_},b___}:> {a,c,b}

will do that.


Luigi B wrote:
> On 26 Feb, 13:56, Jens-Peer Kuska <ku... at>
> wrote:
>> Hi,
>> TabIN /. {a___,{q_,_},{q_,_},b___}:> {a,b}
>> if the second element are not follow the first, you may
>> Sort[] the list.
>> Regards
>>    Jens
>> L.Balz... at wrote:
>>> Dear All,
>>>  I have go the following problem:
>>> I have a table of elements like {{x1,y1},{x2,y2}....}. Occasionally,
>>> two elements have the same x. I would like to drop these elements with
>>> a rule-based function.
>>> Example:
>>> TabIN={{1,1},{1,2},{2,2}};
>>> my desired output is:
>>> TabOUT={{2,2}}
>>> Any help?
>>> Thanks
>>> Luigi
> Thanks, it works!
> but what if (time-wise) I want to skip the Sort of the input table?
> ciao
> Luigi

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