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MathGroup Archive 2008

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Re: Deleting elements from a Table

  • To: mathgroup at smc.vnet.net
  • Subject: [mg85888] Re: Deleting elements from a Table
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 26 Feb 2008 07:56:02 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <fq0u1f$k7g$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

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.Balzano at gmail.com 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
> 


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