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Re: Deleting elements from a Table

  • To: mathgroup at smc.vnet.net
  • Subject: [mg85895] Re: Deleting elements from a Table
  • From: Luigi B <L.Balzano at gmail.com>
  • Date: Wed, 27 Feb 2008 04:23:05 -0500 (EST)
  • References: <fq0u1f$k7g$1@smc.vnet.net> <fq1296$mdj$1@smc.vnet.net>

On 26 Feb, 13:56, Jens-Peer Kuska <ku... at informatik.uni-leipzig.de>
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 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

Thanks, it works!
but what if (time-wise) I want to skip the Sort of the input table?

ciao
Luigi


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